| Commit message (Collapse) | Author | Age | Files | Lines |
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We did a NULL check after "epollfdp = calloc(...)", but we checked
"epollfd" instead of "epollfdp".
Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/tencent_B5D64530EB9C7DBB8D2C88A0C790F1489D0A@qq.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Switch from directly accessing the perf_cpu_map to using the appropriate
libperf API when possible. Using the API simplifies the job of
refactoring use of perf_cpu_map.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: André Almeida <andrealmeid@collabora.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Miaoqian Lin <linmq006@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Song Liu <song@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Yury Norov <yury.norov@gmail.com>
Link: http://lore.kernel.org/lkml/20220122045811.3402706-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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A common problem is confusing CPU map indices with the CPU, by wrapping
the CPU with a struct then this is avoided. This approach is similar to
atomic_t.
Committer notes:
To make it build with BUILD_BPF_SKEL=1 these files needed the
conversions to 'struct perf_cpu' usage:
tools/perf/util/bpf_counter.c
tools/perf/util/bpf_counter_cgroup.c
tools/perf/util/bpf_ftrace.c
Also perf_env__get_cpu() was removed back in "perf cpumap: Switch
cpu_map__build_map to cpu function".
Additionally these needed to be fixed for the ARM builds to complete:
tools/perf/arch/arm/util/cs-etm.c
tools/perf/arch/arm64/util/pmu.c
Suggested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-49-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This: This reverts commit 92723ea0f11d92496687db8c9725248e9d1e5e1d.
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRRRRRRR Ok
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRR FAILED!
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRR Ok
# perf test 91
91: perf stat --bpf-counters test :RRRRRRRRRRRRRRR Ok
yep, it seems the perf bench is broken so the counts won't correlated if
I revert this one:
92723ea0f11d perf bench: Fix two memory leaks detected with ASan
it works for me again.. it seems to break -t option
[root@dell-r440-01 perf]# ./perf bench sched messaging -g 1 -l 100 -t
# Running 'sched/messaging' benchmark:
RRRperf: CLIENT: ready write: Bad file descriptor
Rperf: SENDER: write: Bad file descriptor
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/lkml/YZev7KClb%2Fud43Lc@krava/
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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ASan reports memory leaks while running:
$ perf bench sched all
Fixes: e27454cc6352c422 ("perf bench: Add sched-messaging.c: Benchmark for scheduler and IPC mechanisms based on hackbench")
Signed-off-by: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Russel <rusty@rustcorp.com.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Pierre Gondois <pierre.gondois@arm.com>
Link: http://lore.kernel.org/lkml/20211110022012.16620-1-sohaib.amhmd@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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ASan reports memory leaks while running:
$ sudo ./perf bench futex all
The leaks are caused by perf_cpu_map__new not being freed.
This patch adds the missing perf_cpu_map__put since it calls
cpu_map_delete implicitly.
Fixes: 9c3516d1b850ea93 ("libperf: Add perf_cpu_map__new()/perf_cpu_map__read() functions")
Signed-off-by: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: André Almeida <andrealmeid@collabora.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20211112201134.77892-1-sohaib.amhmd@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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parse_events() may succeed but leave string memory allocations reachable
in the error.
Add an init/exit that must be called to initialize and clean up the
error. This fixes a leak in metricgroup parse_ids.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211107090002.3784612-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Group error functions and name after the data type they manipulate.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211107090002.3784612-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This reverts commit c1ff12dac4657e0134c972978479b97f652711a2.
This commit makes the build break on ubuntu 20.04 and other older
systems and it as well has identation problems, lets revert it till we
get these problems fixed.
Test results:
1 78.36 almalinux:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.0 (Red Hat 11.0.0-1.module_el8.4.0+2107+39fed697)
2 8.40 alpine:3.4 : FAIL gcc version 5.3.0 (Alpine 5.3.0)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
3 8.89 alpine:3.5 : FAIL gcc version 6.2.1 20160822 (Alpine 6.2.1)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
4 8.59 alpine:3.6 : FAIL gcc version 6.3.0 (Alpine 6.3.0)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
5 9.01 alpine:3.7 : FAIL gcc version 6.4.0 (Alpine 6.4.0)
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
6 8.70 alpine:3.8 : FAIL gcc version 6.4.0 (Alpine 6.4.0)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
7 9.70 alpine:3.9 : FAIL gcc version 8.3.0 (Alpine 8.3.0)
In file included from bench/futex-wake.c:25:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
8 9.40 alpine:3.10 : FAIL gcc version 8.3.0 (Alpine 8.3.0)
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
9 9.81 alpine:3.11 : FAIL gcc version 9.3.0 (Alpine 9.3.0)
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
16 | #include <linux/time_types.h>
| ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
16 | #include <linux/time_types.h>
| ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
10 10.32 alpine:3.12 : FAIL gcc version 9.3.0 (Alpine 9.3.0)
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
11 99.82 alpine:3.13 : Ok gcc (Alpine 10.2.1_pre1) 10.2.1 20201203 , Alpine clang version 10.0.1
12 87.39 alpine:3.14 : Ok gcc (Alpine 10.3.1_git20210424) 10.3.1 20210424 , Alpine clang version 11.1.0
13 86.89 alpine:edge : Ok gcc (Alpine 10.3.1_git20210921) 10.3.1 20210921 , Alpine clang version 12.0.1
14 7.30 alt:p8 : FAIL gcc version 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
make[3]: *** [bench] Error 2
15 63.92 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1) , clang version 10.0.0
16 61.42 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 11.2.1 20210911 (ALT Sisyphus 11.2.1-alt1) , ALT Linux Team clang version 12.0.1
17 8.30 amazonlinux:1 : FAIL gcc version 7.2.1 20170915 (Red Hat 7.2.1-2) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [bench] Error 2
18 8.71 amazonlinux:2 : FAIL gcc version 7.3.1 20180712 (Red Hat 7.3.1-13) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [bench] Error 2
19 79.56 centos:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.0 (Red Hat 11.0.0-1.module_el8.4.0+587+5187cac0)
20 82.28 centos:stream : Ok gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-3) , clang version 12.0.1 (Red Hat 12.0.1-2.module_el8.6.0+937+1cafe22c)
21 55.24 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 11.2.1 20211020 releases/gcc-11.2.0-375-g40b209e340 , clang version 11.1.0
22 7.41 debian:9 : FAIL gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
23 7.90 debian:10 : FAIL gcc version 8.3.0 (Debian 8.3.0-6)
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
24 60.32 debian:11 : Ok gcc (Debian 10.2.1-6) 10.2.1 20210110 , Debian clang version 11.0.1-2
25 59.42 debian:experimental : Ok gcc (Debian 11.2.0-10) 11.2.0 , Debian clang version 11.1.0-4
26 23.76 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 11.2.0-9) 11.2.0
27 19.25 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110
28 21.25 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 10.2.1-6) 10.2.1 20210110
29 21.88 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 11.2.0-9) 11.2.0
30 8.20 fedora:22 : FAIL gcc version 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
31 8.20 fedora:23 : FAIL gcc version 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
32 8.59 fedora:24 : FAIL gcc version 6.3.1 20161221 (Red Hat 6.3.1-1) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
33 6.60 fedora:24-x-ARC-uClibc : FAIL gcc version 7.1.1 20170710 (ARCompact ISA Linux uClibc toolchain 2017.09-rc2)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
34 8.59 fedora:25 : FAIL gcc version 6.4.1 20170727 (Red Hat 6.4.1-1) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
35 14.61 fedora:26 : FAIL gcc version 7.3.1 20180130 (Red Hat 7.3.1-2) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
36 8.79 fedora:27 : FAIL gcc version 7.3.1 20180712 (Red Hat 7.3.1-6) (GCC)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
37 15.12 fedora:28 : FAIL gcc version 8.3.1 20190223 (Red Hat 8.3.1-2) (GCC)
In file included from bench/futex-wake.c:25:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
38 9.60 fedora:29 : FAIL gcc version 8.3.1 20190223 (Red Hat 8.3.1-2) (GCC)
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
39 101.90 fedora:30 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) , clang version 8.0.0 (Fedora 8.0.0-3.fc30)
40 99.30 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) , clang version 9.0.1 (Fedora 9.0.1-4.fc31)
41 82.46 fedora:32 : Ok gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) , clang version 10.0.1 (Fedora 10.0.1-3.fc32)
42 81.32 fedora:33 : Ok gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) , clang version 11.0.0 (Fedora 11.0.0-3.fc33)
43 84.07 fedora:34 : Ok gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1) , clang version 12.0.1 (Fedora 12.0.1-1.fc34)
44 7.09 fedora:34-x-ARC-glibc : FAIL gcc version 8.3.1 20190225 (ARC HS GNU/Linux glibc toolchain 2019.03-rc1)
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
45 6.29 fedora:34-x-ARC-uClibc : FAIL gcc version 8.3.1 20190225 (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1)
In file included from bench/futex-hash.c:29:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
46 74.74 fedora:35 : Ok gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1) , clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
47 73.13 fedora:rawhide : Ok gcc (GCC) 11.2.1 20211019 (Red Hat 11.2.1-6) , clang version 13.0.0 (Fedora 13.0.0-4.fc36)
48 28.17 gentoo-stage3:latest : Ok gcc (Gentoo 11.2.0 p1) 11.2.0
49 9.10 mageia:6 : FAIL gcc version 5.5.0 (Mageia 5.5.0-1.mga6)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
50 38.60 mageia:7 : FAIL clang version 8.0.0 (Mageia 8.0.0-1.mga7)
yychar = yylex (&yylval, &yylloc, scanner);
^
#define yylex parse_events_lex
^
1 error generated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: util] Error 2
51 6.18 openmandriva:cooker : FAIL gcc version 11.2.0 20210728 (OpenMandriva) (GCC)
In file included from builtin-bench.c:22:
bench/bench.h:66:19: error: conflicting types for 'pthread_attr_setaffinity_np'; have 'int(pthread_attr_t *, size_t, cpu_set_t *)' {aka 'int(pthread_attr_t *, long unsigned int, cpu_set_t *)'}
66 | static inline int pthread_attr_setaffinity_np(pthread_attr_t *attr __maybe_unused,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from bench/bench.h:64,
from builtin-bench.c:22:
/usr/include/pthread.h:394:12: note: previous declaration of 'pthread_attr_setaffinity_np' with type 'int(pthread_attr_t *, size_t, const cpu_set_t *)' {aka 'int(pthread_attr_t *, long unsigned int, const cpu_set_t *)'}
394 | extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
file: Compiled magic version [540] does not match with shared library magic version [539]
ld: warning: -r and --gc-sections may not be used together, disabling --gc-sections
ld: warning: -r and --icf may not be used together, disabling --icf
ld: warning: -r and --gc-sections may not be used together, disabling --gc-sections
ld: warning: -r and --icf may not be used together, disabling --icf
file: Compiled magic version [540] does not match with shared library magic version [539]
file: Compiled magic version [540] does not match with shared library magic version [539]
ld: warning: -r and --gc-sections may not be used together, disabling --gc-sections
ld: warning: -r and --icf may not be used together, disabling --icf
52 12.51 opensuse:15.0 : FAIL gcc version 7.4.1 20190905 [gcc-7-branch revision 275407] (SUSE Linux)
Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
update-alternatives: error: no alternatives for java
update-alternatives: error: no alternatives for java
Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... libbfd: [ OFF ]
... libbfd-buildid: [ OFF ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
PERF_VERSION = 5.15.g875eaa399042
GEN perf-archive
GEN perf-with-kcore
GEN perf-iostat
--
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-requeue.c:26:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
53 12.41 opensuse:15.1 : FAIL gcc version 7.5.0 (SUSE Linux)
Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
update-alternatives: error: no alternatives for java
update-alternatives: error: no alternatives for java
Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... libbfd: [ OFF ]
... libbfd-buildid: [ OFF ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
PERF_VERSION = 5.15.g875eaa399042
GEN perf-archive
GEN perf-with-kcore
GEN perf-iostat
--
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-requeue.c:26:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
54 12.20 opensuse:15.2 : FAIL gcc version 7.5.0 (SUSE Linux)
Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
update-alternatives: error: no alternatives for java
update-alternatives: error: no alternatives for java
Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... libbfd: [ OFF ]
... libbfd-buildid: [ OFF ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
PERF_VERSION = 5.15.g875eaa399042
GEN perf-archive
GEN perf-with-kcore
GEN perf-iostat
--
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
In file included from bench/futex-wake.c:25:0:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
55 12.30 opensuse:15.3 : FAIL gcc version 7.5.0 (SUSE Linux)
Makefile.config:999: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
update-alternatives: error: no alternatives for java
update-alternatives: error: no alternatives for java
Makefile.config:1043: No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... libbfd: [ OFF ]
... libbfd-buildid: [ OFF ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
PERF_VERSION = 5.15.g875eaa399042
GEN perf-archive
GEN perf-with-kcore
GEN perf-iostat
--
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
In file included from bench/futex-hash.c:29:0:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
cc1: all warnings being treated as errors
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
struct __kernel_old_timespec ts32;
^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
56 92.79 opensuse:tumbleweed : Ok gcc (SUSE Linux) 11.2.1 20210816 [revision 056e324ce46a7924b5cf10f61010cf9dd2ca10e9] , clang version 13.0.0
57 78.85 oraclelinux:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1.0.4) , clang version 11.0.0 (Red Hat 11.0.0-1.0.1.module+el8.4.0+20046+39fed697)
58 78.47 rockylinux:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.0 (Red Hat 11.0.0-1.module+el8.4.0+412+05cf643f)
59 8.32 ubuntu:16.04 : FAIL gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
60 7.19 ubuntu:16.04-x-arm : FAIL gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9)
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
61 18.14 ubuntu:16.04-x-arm64 : FAIL gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
62 6.99 ubuntu:16.04-x-powerpc : FAIL gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
63 7.29 ubuntu:16.04-x-powerpc64 : FAIL gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-requeue.c:26:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-lock-pi.c:19:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
64 7.29 ubuntu:16.04-x-powerpc64el : FAIL gcc version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
65 6.59 ubuntu:16.04-x-s390 : FAIL gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.9)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h:16:30: fatal error: linux/time_types.h: No such file or directory
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
66 9.00 ubuntu:18.04 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
67 7.49 ubuntu:18.04-x-arm : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
68 7.49 ubuntu:18.04-x-arm64 : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
69 6.09 ubuntu:18.04-x-m68k : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake-parallel.c:31:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
70 7.40 ubuntu:18.04-x-powerpc : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
71 8.00 ubuntu:18.04-x-powerpc64 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
72 7.99 ubuntu:18.04-x-powerpc64el : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
73 6.89 ubuntu:18.04-x-riscv64 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
74 6.69 ubuntu:18.04-x-s390 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
75 7.29 ubuntu:18.04-x-sh4 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
76 6.69 ubuntu:18.04-x-sparc64 : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
In file included from bench/futex-hash.c:29:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
In file included from bench/futex-wake.c:25:0:
bench/futex.h:16:10: fatal error: linux/time_types.h: No such file or directory
#include <linux/time_types.h>
^~~~~~~~~~~~~~~~~~~~
compilation terminated.
/git/perf-5.15.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
make[3]: *** [bench] Error 2
77 9.59 ubuntu:20.04 : FAIL gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
In file included from bench/futex-wake.c:25:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
In file included from bench/futex-wake-parallel.c:31:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
78 8.29 ubuntu:20.04-x-powerpc64el : FAIL gcc version 10.3.0 (Ubuntu 10.3.0-1ubuntu1~20.04)
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
In file included from bench/futex-wake.c:25:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
In file included from bench/futex-requeue.c:26:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
In file included from bench/futex-wake-parallel.c:31:
bench/futex.h: In function 'futex_syscall':
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
bench/futex.h:64:33: error: invalid application of 'sizeof' to incomplete type 'struct __kernel_old_timespec'
64 | if (sizeof(*timeout) == sizeof(struct __kernel_old_timespec))
| ^~~~~~
bench/futex.h:68:32: error: storage size of 'ts32' isn't known
68 | struct __kernel_old_timespec ts32;
| ^~~~
bench/futex.h:68:32: error: unused variable 'ts32' [-Werror=unused-variable]
cc1: all warnings being treated as errors
cc1: all warnings being treated as errors
cc1: all warnings being treated as errors
make[3]: *** [/git/perf-5.15.0/tools/build/Makefile.build:139: bench] Error 2
79 65.92 ubuntu:20.10 : Ok gcc (Ubuntu 10.3.0-1ubuntu1~20.10) 10.3.0 , Ubuntu clang version 11.0.0-2
80 65.91 ubuntu:21.04 : Ok gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0 , Ubuntu clang version 12.0.0-3ubuntu1~21.04.2
81 68.12 ubuntu:21.10 : Ok gcc (Ubuntu 11.2.0-7ubuntu2) 11.2.0 , Ubuntu clang version 13.0.0-2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Some 32-bit architectures (such are 32-bit RISC-V) only have a 64-bit
time_t and as such don't have the SYS_futex syscall. This patch will
allow us to use the SYS_futex_time64 syscall on those platforms.
This also converts the futex calls to be y2038 safe (when built for a
5.1+ kernel).
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alistair Francis <alistair23@gmail.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-riscv@lists.infradead.org
Link: http://lore.kernel.org/lkml/20211022013343.2262938-2-alistair.francis@opensource.wdc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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In preparation for a more complex futex() function let's convert the
current macro into two functions. We need two functions to avoid
compiler failures as the macro is overloaded.
This will allow us to include pre-processor conditionals in the futex
syscall functions.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alistair Francis <alistair23@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-riscv@lists.infradead.org
Link: http://lore.kernel.org/lkml/20211022013343.2262938-1-alistair.francis@opensource.wdc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This patch introduces a new inline function to convert a timeval to
usec.
This function will be used also in the next patch.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/b95035ec4a125355be8ea843f7275c4580da6398.1629490974.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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during record
Depending on the use case, it might require some kind of synthesizing
and some not. Make it controllable to turn off heavy operations like
MMAP for all tasks.
Currently all users are converted to enable all the synthesis by
default. It'll be updated in the later patch.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https //lore.kernel.org/r/20210811044658.1313391-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge more updates from Andrew Morton:
"147 patches, based on 7d2a07b769330c34b4deabeed939325c77a7ec2f.
Subsystems affected by this patch series: mm (memory-hotplug, rmap,
ioremap, highmem, cleanups, secretmem, kfence, damon, and vmscan),
alpha, percpu, procfs, misc, core-kernel, MAINTAINERS, lib,
checkpatch, epoll, init, nilfs2, coredump, fork, pids, criu, kconfig,
selftests, ipc, and scripts"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits)
scripts: check_extable: fix typo in user error message
mm/workingset: correct kernel-doc notations
ipc: replace costly bailout check in sysvipc_find_ipc()
selftests/memfd: remove unused variable
Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH
configs: remove the obsolete CONFIG_INPUT_POLLDEV
prctl: allow to setup brk for et_dyn executables
pid: cleanup the stale comment mentioning pidmap_init().
kernel/fork.c: unexport get_{mm,task}_exe_file
coredump: fix memleak in dump_vma_snapshot()
fs/coredump.c: log if a core dump is aborted due to changed file permissions
nilfs2: use refcount_dec_and_lock() to fix potential UAF
nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group
nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group
nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group
nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group
nilfs2: fix NULL pointer in nilfs_##name##_attr_release
nilfs2: fix memory leak in nilfs_sysfs_create_device_group
trap: cleanup trap_init()
init: move usermodehelper_enable() to populate_rootfs()
...
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Rename bitmap_alloc() to bitmap_zalloc() in tools to follow the bitmap API
in the kernel.
No functional changes intended.
Link: https://lkml.kernel.org/r/20210814211713.180533-14-yury.norov@gmail.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Suggested-by: Yury Norov <yury.norov@gmail.com>
Acked-by: Yury Norov <yury.norov@gmail.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Lobakin <alobakin@pm.me>
Cc: Alexey Klimov <aklimov@redhat.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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architectures
73 9.00 ubuntu:18.04-x-powerpc : FAIL gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
bench/evlist-open-close.c: In function 'bench_evlist_open_close__run':
bench/evlist-open-close.c:173:12: error: format '%ld' expects argument of type 'long int', but argument 5 has type 'u64 {aka long long unsigned int}' [-Werror=format=]
pr_debug("Iteration %d took:\t%ldus\n", i, runtime_us);
^
bench/../util/debug.h:18:21: note: in definition of macro 'pr_fmt'
#define pr_fmt(fmt) fmt
^~~
bench/evlist-open-close.c:173:3: note: in expansion of macro 'pr_debug'
pr_debug("Iteration %d took:\t%ldus\n", i, runtime_us);
^~~~~~~~
cc1: all warnings being treated as errors
/git/perf-5.14.0/tools/build/Makefile.build:139: recipe for target 'bench' failed
Cc: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 4241eabf59d5b7e9 ("perf bench: Add benchmark for evlist open/close operations")
Link: http://lore.kernel.org/lkml/YS0oTcA9Zuy8Wjm9@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The build on fedora:35 and fedora:rawhide with clang is failing with:
49 41.00 fedora:35 : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
u64 len = 0;
^
1 error generated.
make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
50 41.11 fedora:rawhide : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
u64 len = 0;
^
1 error generated.
make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
That 'len' variable is not used at all, so just make sure all the
synthesize_RECORD() routines return ssize_t to propagate the writen()
return, as it may fail, ditch the 'ret' var and bail out if those
routines fail.
Fixes: 0bf02a0d80427f26 ("perf bench: Add build-id injection benchmark")
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/CAM9d7cgEZNSor+B+7Y2C+QYGme_v5aH0Zn0RLfxoQ+Fy83EHrg@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This new benchmark finds the total time that is taken to open, mmap,
enable, disable, munmap, close an evlist (time taken for new,
create_maps, config, delete is not counted in).
The evlist can be configured as in perf-record using the
-a,-C,-e,-u,--per-thread,-t,-p options.
The events can be duplicated in the evlist to quickly test performance
with many events using the -n options.
Furthermore, also the number of iterations used to calculate the
statistics is customizable.
Examples:
- Open one dummy event system-wide:
$ sudo ./perf bench internals evlist-open-close
Number of cpus: 4
Number of threads: 1
Number of events: 1 (4 fds)
Number of iterations: 100
Average open-close took: 613.870 usec (+- 32.852 usec)
- Open the group '{cs,cycles}' on CPU 0
$ sudo ./perf bench internals evlist-open-close -e '{cs,cycles}' -C 0
Number of cpus: 1
Number of threads: 1
Number of events: 2 (2 fds)
Number of iterations: 100
Average open-close took: 8503.220 usec (+- 252.652 usec)
- Open 10 'cycles' events for user 0, calculate average over 100 runs
$ sudo ./perf bench internals evlist-open-close -e cycles -n 10 -u 0 -i 100
Number of cpus: 4
Number of threads: 328
Number of events: 10 (13120 fds)
Number of iterations: 100
Average open-close took: 180043.140 usec (+- 2295.889 usec)
Committer notes:
Replaced a deprecated bzero() call with designated initialized zeroing.
Added some missing evlist allocation checks, one noted by Riccardo on
the mailing list.
Minor cosmetic changes (sent in private).
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210809201101.277594-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This extends the program to measure WAIT_REQUEUE_PI+CMP_REQUEUE_PI
pairs, which are the underlying machinery behind priority-inheritance
aware condition variables. The defaults are the same as with the regular
non-pi version, requeueing one task at a time, with the exception that
PI will always wakeup the first waiter.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20210809043301.66002-8-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Do not assume success and account for EAGAIN or any other return value,
however unlikely.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20210809043301.66002-7-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Such that all threads are requeued to uaddr2 in a single
futex_cmp_requeue(), unlike the default, which is 1.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20210809043301.66002-6-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This adds, across all futex benchmarks, the -m/--mlockall option
which is a common operation for realtime workloads by not incurring
in page faults in paths that want determinism. As such, threads
started after a call to mlockall(2) will generate page faults
immediately since the new stack is immediately forced to memory,
due to the MCL_FUTURE flag.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20210809043301.66002-5-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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It obviously doesn't belong there.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20210809043301.66002-3-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Do this across all futex-bench tests such that all program parameters
neatly share a common structure, which is nicer than how we have them
now. No changes in program behavior are expected.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20210809043301.66002-2-dave@stgolabs.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The repipe argument is only used by perf inject and the all others
passes 'false'. Let's remove it from the function signature and add
__perf_session__new() to be called from perf inject directly.
This is a preparation of the change the pipe input/output.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210719223153.1618812-2-namhyung@kernel.org
[ Fixed up some trivial conflicts as this patchset fell thru the cracks ;-( ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Fix ~124 single-word typos and a few spelling errors in the perf tooling code,
accumulated over the years.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210321113734.GA248990@gmail.com
Link: http://lore.kernel.org/lkml/20210323160915.GA61903@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the fixes sent for v5.12 and continue development based on
v5.12-rc2, i.e. without the swap on file bug.
This also gets a slightly newer and better tools/perf/arch/arm/util/cs-etm.c
patch version, using the BIT() macro, that had already been slated to
v5.13 but ended up going to v5.12-rc1 on an older version.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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In systems having higher node numbers available like node
255, perf numa bench will fail with SIGABORT.
<<>>
perf: bench/numa.c:1416: init: Assertion `!(g->p.nr_nodes > 64 || g->p.nr_nodes < 0)' failed.
Aborted (core dumped)
<<>>
Snippet from 'numactl -H' below on a powerpc system where the highest
node number available is 255:
available: 6 nodes (0,8,252-255)
node 0 cpus: <cpu-list>
node 0 size: 519587 MB
node 0 free: 516659 MB
node 8 cpus: <cpu-list>
node 8 size: 523607 MB
node 8 free: 486757 MB
node 252 cpus:
node 252 size: 0 MB
node 252 free: 0 MB
node 253 cpus:
node 253 size: 0 MB
node 253 free: 0 MB
node 254 cpus:
node 254 size: 0 MB
node 254 free: 0 MB
node 255 cpus:
node 255 size: 0 MB
node 255 free: 0 MB
node distances:
node 0 8 252 253 254 255
Note: <cpu-list> expands to actual cpu list in the original output.
These nodes 252-255 are to represent the memory on GPUs and are valid
nodes.
The perf numa bench init code has a condition check to see if the number
of NUMA nodes (nr_nodes) exceeds MAX_NR_NODES. The value of MAX_NR_NODES
defined in perf code is 64. And the 'nr_nodes' is the value from
numa_max_node() which represents the highest node number available in the
system. In some systems where we could have NUMA node 255, this condition
check fails and results in SIGABORT.
The numa benchmark uses static value of MAX_NR_NODES in the code to
represent size of two NUMA node arrays and node bitmask used for setting
memory policy. Patch adds a fix to dynamically allocate size for the
two arrays and bitmask value based on the node numbers available in the
system. With the fix, perf numa benchmark will work with node configuration
on any system and thus removes the static MAX_NR_NODES value.
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lore.kernel.org/lkml/1614271802-1503-1-git-send-email-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The musl-libc [1] defines (struct timeval).tv_sec as a 'long long' for
arm and other architectures. The default build having a '-Wformat' flag,
not casting the field when printing prevents from building perf.
This patch casts the (struct timeval).tv_sec fields to the expected
format.
[1] git://git.musl-libc.org/musl
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Douglas.raillard@arm.com
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210224182410.5366-1-Pierre.Gondois@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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$ codespell ./tool/perf/bench
tools/perf/bench/inject-buildid.c:375: tihs ==> this
Fix a typo found by codespell.
Signed-off-by: Xiong Zhenwu <xiong.zhenwu@zte.com.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210305092212.204923-1-xiong.zhenwu@zte.com.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Minor cleanup.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210211183914.4093187-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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mem memcpy'
To bring in the change made in this cset:
4d6ffa27b8e5116c ("x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S")
6dcc5627f6aec4cb ("x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*")
I needed to define SYM_FUNC_START_LOCAL() as SYM_L_GLOBAL as
mem{cpy,set}_{orig,erms} are used by 'perf bench'.
This silences these perf tools build warnings:
Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S'
diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S
Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S'
diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Fangrui Song <maskray@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools updates from Arnaldo Carvalho de Melo:
- cgroup improvements for 'perf stat', allowing for compact
specification of events and cgroups in the command line.
- Support per thread topdown metrics in 'perf stat'.
- Support sample-read topdown metric group in 'perf record'
- Show start of latency in addition to its start in 'perf sched
latency'.
- Add min, max to 'perf script' futex-contention output, in addition to
avg.
- Allow usage of 'perf_event_attr->exclusive' attribute via the new
':e' event modifier.
- Add 'snapshot' command to 'perf record --control', using it with
Intel PT.
- Support FIFO file names as alternative options to 'perf record
--control'.
- Introduce branch history "streams", to compare 'perf record' runs
with 'perf diff' based on branch records and report hot streams.
- Support PE executable symbol tables using libbfd, to profile, for
instance, wine binaries.
- Add filter support for option 'perf ftrace -F/--funcs'.
- Allow configuring the 'disassembler_style' 'perf annotate' knob via
'perf config'
- Update CascadelakeX and SkylakeX JSON vendor events files.
- Add support for parsing perchip/percore JSON vendor events.
- Add power9 hv_24x7 core level metric events.
- Add L2 prefetch, ITLB instruction fetch hits JSON events for AMD
zen1.
- Enable Family 19h users by matching Zen2 AMD vendor events.
- Use debuginfod in 'perf probe' when required debug files not found
locally.
- Display negative tid in non-sample events in 'perf script'.
- Make GTK2 support opt-in
- Add build test with GTK+
- Add missing -lzstd to the fast path feature detection
- Add scripts to auto generate 'mmap', 'mremap' string<->id tables for
use in 'perf trace'.
- Show python test script in verbose mode.
- Fix uncore metric expressions
- Msan uninitialized use fixes.
- Use condition variables in 'perf bench numa'
- Autodetect python3 binary in systems without python2.
- Support md5 build ids in addition to sha1.
- Add build id 'perf test' regression test.
- Fix printable strings in python3 scripts.
- Fix off by ones in 'perf trace' in arches using libaudit.
- Fix JSON event code for events referencing std arch events.
- Introduce 'perf test' shell script for Arm CoreSight testing.
- Add rdtsc() for Arm64 for used in the PERF_RECORD_TIME_CONV metadata
event and in 'perf test tsc'.
- 'perf c2c' improvements: Add "RMT Load Hit" metric, "Total Stores",
fixes and documentation update.
- Fix usage of reloc_sym in 'perf probe' when using both kallsyms and
debuginfo files.
- Do not print 'Metric Groups:' unnecessarily in 'perf list'
- Refcounting fixes in the event parsing code.
- Add expand cgroup event 'perf test' entry.
- Fix out of bounds CPU map access when handling armv8_pmu events in
'perf stat'.
- Add build-id injection 'perf bench' benchmark.
- Enter namespace when reading build-id in 'perf inject'.
- Do not load map/dso when injecting build-id speeding up the 'perf
inject' process.
- Add --buildid-all option to avoid processing all samples, just the
mmap metadata events.
- Add feature test to check if libbfd has buildid support
- Add 'perf test' entry for PE binary format support.
- Fix typos in power8 PMU vendor events JSON files.
- Hide libtraceevent non API functions.
* tag 'perf-tools-for-v5.10-2020-10-15' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (113 commits)
perf c2c: Update documentation for metrics reorganization
perf c2c: Add metrics "RMT Load Hit"
perf c2c: Correct LLC load hit metrics
perf c2c: Change header for LLC local hit
perf c2c: Use more explicit headers for HITM
perf c2c: Change header from "LLC Load Hitm" to "Load Hitm"
perf c2c: Organize metrics based on memory hierarchy
perf c2c: Display "Total Stores" as a standalone metrics
perf c2c: Display the total numbers continuously
perf bench: Use condition variables in numa.
perf jevents: Fix event code for events referencing std arch events
perf diff: Support hot streams comparison
perf streams: Report hot streams
perf streams: Calculate the sum of total streams hits
perf streams: Link stream pair
perf streams: Compare two streams
perf streams: Get the evsel_streams by evsel_idx
perf streams: Introduce branch history "streams"
perf intel-pt: Improve PT documentation slightly
perf tools: Add support for exclusive groups/events
...
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The existing approach to synchronization between threads in the numa
benchmark is unbalanced mutexes.
This synchronization causes thread sanitizer to warn of locks being
taken twice on a thread without an unlock, as well as unlocks with no
corresponding locks.
This change replaces the synchronization with more regular condition
variables.
While this fixes one class of thread sanitizer warnings, there still
remain warnings of data races due to threads reading and writing shared
memory without any atomics.
Committer testing:
Basic run on a non-NUMA machine.
# perf bench numa
# List of available benchmarks for collection 'numa':
mem: Benchmark for NUMA workloads
all: Run all NUMA benchmarks
# perf bench numa all
# Running numa/mem benchmark...
# Running main, "perf bench numa numa-mem"
#
# Running test on: Linux five 5.8.12-200.fc32.x86_64 #1 SMP Mon Sep 28 12:17:31 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
#
# Running RAM-bw-local, "perf bench numa mem -p 1 -t 1 -P 1024 -C 0 -M 0 -s 20 -zZq --thp 1 --no-data_rand_walk"
20.076 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.073 secs average thread-runtime
0.190 % difference between max/avg runtime
241.828 GB data processed, per thread
241.828 GB data processed, total
0.083 nsecs/byte/thread runtime
12.045 GB/sec/thread speed
12.045 GB/sec total speed
# Running RAM-bw-local-NOTHP, "perf bench numa mem -p 1 -t 1 -P 1024 -C 0 -M 0 -s 20 -zZq --thp 1 --no-data_rand_walk --thp -1"
20.045 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.014 secs average thread-runtime
0.111 % difference between max/avg runtime
234.304 GB data processed, per thread
234.304 GB data processed, total
0.086 nsecs/byte/thread runtime
11.689 GB/sec/thread speed
11.689 GB/sec total speed
# Running RAM-bw-remote, "perf bench numa mem -p 1 -t 1 -P 1024 -C 0 -M 1 -s 20 -zZq --thp 1 --no-data_rand_walk"
Test not applicable, system has only 1 nodes.
# Running RAM-bw-local-2x, "perf bench numa mem -p 2 -t 1 -P 1024 -C 0,2 -M 0x2 -s 20 -zZq --thp 1 --no-data_rand_walk"
20.138 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.121 secs average thread-runtime
0.342 % difference between max/avg runtime
135.961 GB data processed, per thread
271.922 GB data processed, total
0.148 nsecs/byte/thread runtime
6.752 GB/sec/thread speed
13.503 GB/sec total speed
# Running RAM-bw-remote-2x, "perf bench numa mem -p 2 -t 1 -P 1024 -C 0,2 -M 1x2 -s 20 -zZq --thp 1 --no-data_rand_walk"
Test not applicable, system has only 1 nodes.
# Running RAM-bw-cross, "perf bench numa mem -p 2 -t 1 -P 1024 -C 0,8 -M 1,0 -s 20 -zZq --thp 1 --no-data_rand_walk"
Test not applicable, system has only 1 nodes.
# Running 1x3-convergence, "perf bench numa mem -p 1 -t 3 -P 512 -s 100 -zZ0qcm --thp 1"
0.747 secs latency to NUMA-converge
0.747 secs slowest (max) thread-runtime
0.000 secs fastest (min) thread-runtime
0.714 secs average thread-runtime
50.000 % difference between max/avg runtime
3.228 GB data processed, per thread
9.683 GB data processed, total
0.231 nsecs/byte/thread runtime
4.321 GB/sec/thread speed
12.964 GB/sec total speed
# Running 1x4-convergence, "perf bench numa mem -p 1 -t 4 -P 512 -s 100 -zZ0qcm --thp 1"
1.127 secs latency to NUMA-converge
1.127 secs slowest (max) thread-runtime
1.000 secs fastest (min) thread-runtime
1.089 secs average thread-runtime
5.624 % difference between max/avg runtime
3.765 GB data processed, per thread
15.062 GB data processed, total
0.299 nsecs/byte/thread runtime
3.342 GB/sec/thread speed
13.368 GB/sec total speed
# Running 1x6-convergence, "perf bench numa mem -p 1 -t 6 -P 1020 -s 100 -zZ0qcm --thp 1"
1.003 secs latency to NUMA-converge
1.003 secs slowest (max) thread-runtime
0.000 secs fastest (min) thread-runtime
0.889 secs average thread-runtime
50.000 % difference between max/avg runtime
2.141 GB data processed, per thread
12.847 GB data processed, total
0.469 nsecs/byte/thread runtime
2.134 GB/sec/thread speed
12.805 GB/sec total speed
# Running 2x3-convergence, "perf bench numa mem -p 2 -t 3 -P 1020 -s 100 -zZ0qcm --thp 1"
1.814 secs latency to NUMA-converge
1.814 secs slowest (max) thread-runtime
1.000 secs fastest (min) thread-runtime
1.716 secs average thread-runtime
22.440 % difference between max/avg runtime
3.747 GB data processed, per thread
22.483 GB data processed, total
0.484 nsecs/byte/thread runtime
2.065 GB/sec/thread speed
12.393 GB/sec total speed
# Running 3x3-convergence, "perf bench numa mem -p 3 -t 3 -P 1020 -s 100 -zZ0qcm --thp 1"
2.065 secs latency to NUMA-converge
2.065 secs slowest (max) thread-runtime
1.000 secs fastest (min) thread-runtime
1.947 secs average thread-runtime
25.788 % difference between max/avg runtime
2.855 GB data processed, per thread
25.694 GB data processed, total
0.723 nsecs/byte/thread runtime
1.382 GB/sec/thread speed
12.442 GB/sec total speed
# Running 4x4-convergence, "perf bench numa mem -p 4 -t 4 -P 512 -s 100 -zZ0qcm --thp 1"
1.912 secs latency to NUMA-converge
1.912 secs slowest (max) thread-runtime
1.000 secs fastest (min) thread-runtime
1.775 secs average thread-runtime
23.852 % difference between max/avg runtime
1.479 GB data processed, per thread
23.668 GB data processed, total
1.293 nsecs/byte/thread runtime
0.774 GB/sec/thread speed
12.378 GB/sec total speed
# Running 4x4-convergence-NOTHP, "perf bench numa mem -p 4 -t 4 -P 512 -s 100 -zZ0qcm --thp 1 --thp -1"
1.783 secs latency to NUMA-converge
1.783 secs slowest (max) thread-runtime
1.000 secs fastest (min) thread-runtime
1.633 secs average thread-runtime
21.960 % difference between max/avg runtime
1.345 GB data processed, per thread
21.517 GB data processed, total
1.326 nsecs/byte/thread runtime
0.754 GB/sec/thread speed
12.067 GB/sec total speed
# Running 4x6-convergence, "perf bench numa mem -p 4 -t 6 -P 1020 -s 100 -zZ0qcm --thp 1"
5.396 secs latency to NUMA-converge
5.396 secs slowest (max) thread-runtime
4.000 secs fastest (min) thread-runtime
4.928 secs average thread-runtime
12.937 % difference between max/avg runtime
2.721 GB data processed, per thread
65.306 GB data processed, total
1.983 nsecs/byte/thread runtime
0.504 GB/sec/thread speed
12.102 GB/sec total speed
# Running 4x8-convergence, "perf bench numa mem -p 4 -t 8 -P 512 -s 100 -zZ0qcm --thp 1"
3.121 secs latency to NUMA-converge
3.121 secs slowest (max) thread-runtime
2.000 secs fastest (min) thread-runtime
2.836 secs average thread-runtime
17.962 % difference between max/avg runtime
1.194 GB data processed, per thread
38.192 GB data processed, total
2.615 nsecs/byte/thread runtime
0.382 GB/sec/thread speed
12.236 GB/sec total speed
# Running 8x4-convergence, "perf bench numa mem -p 8 -t 4 -P 512 -s 100 -zZ0qcm --thp 1"
4.302 secs latency to NUMA-converge
4.302 secs slowest (max) thread-runtime
3.000 secs fastest (min) thread-runtime
4.045 secs average thread-runtime
15.133 % difference between max/avg runtime
1.631 GB data processed, per thread
52.178 GB data processed, total
2.638 nsecs/byte/thread runtime
0.379 GB/sec/thread speed
12.128 GB/sec total speed
# Running 8x4-convergence-NOTHP, "perf bench numa mem -p 8 -t 4 -P 512 -s 100 -zZ0qcm --thp 1 --thp -1"
4.418 secs latency to NUMA-converge
4.418 secs slowest (max) thread-runtime
3.000 secs fastest (min) thread-runtime
4.104 secs average thread-runtime
16.045 % difference between max/avg runtime
1.664 GB data processed, per thread
53.254 GB data processed, total
2.655 nsecs/byte/thread runtime
0.377 GB/sec/thread speed
12.055 GB/sec total speed
# Running 3x1-convergence, "perf bench numa mem -p 3 -t 1 -P 512 -s 100 -zZ0qcm --thp 1"
0.973 secs latency to NUMA-converge
0.973 secs slowest (max) thread-runtime
0.000 secs fastest (min) thread-runtime
0.955 secs average thread-runtime
50.000 % difference between max/avg runtime
4.124 GB data processed, per thread
12.372 GB data processed, total
0.236 nsecs/byte/thread runtime
4.238 GB/sec/thread speed
12.715 GB/sec total speed
# Running 4x1-convergence, "perf bench numa mem -p 4 -t 1 -P 512 -s 100 -zZ0qcm --thp 1"
0.820 secs latency to NUMA-converge
0.820 secs slowest (max) thread-runtime
0.000 secs fastest (min) thread-runtime
0.808 secs average thread-runtime
50.000 % difference between max/avg runtime
2.555 GB data processed, per thread
10.220 GB data processed, total
0.321 nsecs/byte/thread runtime
3.117 GB/sec/thread speed
12.468 GB/sec total speed
# Running 8x1-convergence, "perf bench numa mem -p 8 -t 1 -P 512 -s 100 -zZ0qcm --thp 1"
0.667 secs latency to NUMA-converge
0.667 secs slowest (max) thread-runtime
0.000 secs fastest (min) thread-runtime
0.607 secs average thread-runtime
50.000 % difference between max/avg runtime
1.009 GB data processed, per thread
8.069 GB data processed, total
0.661 nsecs/byte/thread runtime
1.512 GB/sec/thread speed
12.095 GB/sec total speed
# Running 16x1-convergence, "perf bench numa mem -p 16 -t 1 -P 256 -s 100 -zZ0qcm --thp 1"
1.546 secs latency to NUMA-converge
1.546 secs slowest (max) thread-runtime
1.000 secs fastest (min) thread-runtime
1.485 secs average thread-runtime
17.664 % difference between max/avg runtime
1.162 GB data processed, per thread
18.594 GB data processed, total
1.331 nsecs/byte/thread runtime
0.752 GB/sec/thread speed
12.025 GB/sec total speed
# Running 32x1-convergence, "perf bench numa mem -p 32 -t 1 -P 128 -s 100 -zZ0qcm --thp 1"
0.812 secs latency to NUMA-converge
0.812 secs slowest (max) thread-runtime
0.000 secs fastest (min) thread-runtime
0.739 secs average thread-runtime
50.000 % difference between max/avg runtime
0.309 GB data processed, per thread
9.874 GB data processed, total
2.630 nsecs/byte/thread runtime
0.380 GB/sec/thread speed
12.166 GB/sec total speed
# Running 2x1-bw-process, "perf bench numa mem -p 2 -t 1 -P 1024 -s 20 -zZ0q --thp 1"
20.044 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.020 secs average thread-runtime
0.109 % difference between max/avg runtime
125.750 GB data processed, per thread
251.501 GB data processed, total
0.159 nsecs/byte/thread runtime
6.274 GB/sec/thread speed
12.548 GB/sec total speed
# Running 3x1-bw-process, "perf bench numa mem -p 3 -t 1 -P 1024 -s 20 -zZ0q --thp 1"
20.148 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.090 secs average thread-runtime
0.367 % difference between max/avg runtime
85.267 GB data processed, per thread
255.800 GB data processed, total
0.236 nsecs/byte/thread runtime
4.232 GB/sec/thread speed
12.696 GB/sec total speed
# Running 4x1-bw-process, "perf bench numa mem -p 4 -t 1 -P 1024 -s 20 -zZ0q --thp 1"
20.169 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.100 secs average thread-runtime
0.419 % difference between max/avg runtime
63.144 GB data processed, per thread
252.576 GB data processed, total
0.319 nsecs/byte/thread runtime
3.131 GB/sec/thread speed
12.523 GB/sec total speed
# Running 8x1-bw-process, "perf bench numa mem -p 8 -t 1 -P 512 -s 20 -zZ0q --thp 1"
20.175 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.107 secs average thread-runtime
0.433 % difference between max/avg runtime
31.267 GB data processed, per thread
250.133 GB data processed, total
0.645 nsecs/byte/thread runtime
1.550 GB/sec/thread speed
12.398 GB/sec total speed
# Running 8x1-bw-process-NOTHP, "perf bench numa mem -p 8 -t 1 -P 512 -s 20 -zZ0q --thp 1 --thp -1"
20.216 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.113 secs average thread-runtime
0.535 % difference between max/avg runtime
30.998 GB data processed, per thread
247.981 GB data processed, total
0.652 nsecs/byte/thread runtime
1.533 GB/sec/thread speed
12.266 GB/sec total speed
# Running 16x1-bw-process, "perf bench numa mem -p 16 -t 1 -P 256 -s 20 -zZ0q --thp 1"
20.234 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.174 secs average thread-runtime
0.577 % difference between max/avg runtime
15.377 GB data processed, per thread
246.039 GB data processed, total
1.316 nsecs/byte/thread runtime
0.760 GB/sec/thread speed
12.160 GB/sec total speed
# Running 1x4-bw-thread, "perf bench numa mem -p 1 -t 4 -T 256 -s 20 -zZ0q --thp 1"
20.040 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.028 secs average thread-runtime
0.099 % difference between max/avg runtime
66.832 GB data processed, per thread
267.328 GB data processed, total
0.300 nsecs/byte/thread runtime
3.335 GB/sec/thread speed
13.340 GB/sec total speed
# Running 1x8-bw-thread, "perf bench numa mem -p 1 -t 8 -T 256 -s 20 -zZ0q --thp 1"
20.064 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.034 secs average thread-runtime
0.160 % difference between max/avg runtime
32.911 GB data processed, per thread
263.286 GB data processed, total
0.610 nsecs/byte/thread runtime
1.640 GB/sec/thread speed
13.122 GB/sec total speed
# Running 1x16-bw-thread, "perf bench numa mem -p 1 -t 16 -T 128 -s 20 -zZ0q --thp 1"
20.092 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.052 secs average thread-runtime
0.230 % difference between max/avg runtime
16.131 GB data processed, per thread
258.088 GB data processed, total
1.246 nsecs/byte/thread runtime
0.803 GB/sec/thread speed
12.845 GB/sec total speed
# Running 1x32-bw-thread, "perf bench numa mem -p 1 -t 32 -T 64 -s 20 -zZ0q --thp 1"
20.099 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.063 secs average thread-runtime
0.247 % difference between max/avg runtime
7.962 GB data processed, per thread
254.773 GB data processed, total
2.525 nsecs/byte/thread runtime
0.396 GB/sec/thread speed
12.676 GB/sec total speed
# Running 2x3-bw-process, "perf bench numa mem -p 2 -t 3 -P 512 -s 20 -zZ0q --thp 1"
20.150 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.120 secs average thread-runtime
0.372 % difference between max/avg runtime
44.827 GB data processed, per thread
268.960 GB data processed, total
0.450 nsecs/byte/thread runtime
2.225 GB/sec/thread speed
13.348 GB/sec total speed
# Running 4x4-bw-process, "perf bench numa mem -p 4 -t 4 -P 512 -s 20 -zZ0q --thp 1"
20.258 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.168 secs average thread-runtime
0.636 % difference between max/avg runtime
17.079 GB data processed, per thread
273.263 GB data processed, total
1.186 nsecs/byte/thread runtime
0.843 GB/sec/thread speed
13.489 GB/sec total speed
# Running 4x6-bw-process, "perf bench numa mem -p 4 -t 6 -P 512 -s 20 -zZ0q --thp 1"
20.559 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.382 secs average thread-runtime
1.359 % difference between max/avg runtime
10.758 GB data processed, per thread
258.201 GB data processed, total
1.911 nsecs/byte/thread runtime
0.523 GB/sec/thread speed
12.559 GB/sec total speed
# Running 4x8-bw-process, "perf bench numa mem -p 4 -t 8 -P 512 -s 20 -zZ0q --thp 1"
20.744 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.516 secs average thread-runtime
1.792 % difference between max/avg runtime
8.069 GB data processed, per thread
258.201 GB data processed, total
2.571 nsecs/byte/thread runtime
0.389 GB/sec/thread speed
12.447 GB/sec total speed
# Running 4x8-bw-process-NOTHP, "perf bench numa mem -p 4 -t 8 -P 512 -s 20 -zZ0q --thp 1 --thp -1"
20.855 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.561 secs average thread-runtime
2.050 % difference between max/avg runtime
8.069 GB data processed, per thread
258.201 GB data processed, total
2.585 nsecs/byte/thread runtime
0.387 GB/sec/thread speed
12.381 GB/sec total speed
# Running 3x3-bw-process, "perf bench numa mem -p 3 -t 3 -P 512 -s 20 -zZ0q --thp 1"
20.134 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.077 secs average thread-runtime
0.333 % difference between max/avg runtime
28.091 GB data processed, per thread
252.822 GB data processed, total
0.717 nsecs/byte/thread runtime
1.395 GB/sec/thread speed
12.557 GB/sec total speed
# Running 5x5-bw-process, "perf bench numa mem -p 5 -t 5 -P 512 -s 20 -zZ0q --thp 1"
20.588 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.375 secs average thread-runtime
1.427 % difference between max/avg runtime
10.177 GB data processed, per thread
254.436 GB data processed, total
2.023 nsecs/byte/thread runtime
0.494 GB/sec/thread speed
12.359 GB/sec total speed
# Running 2x16-bw-process, "perf bench numa mem -p 2 -t 16 -P 512 -s 20 -zZ0q --thp 1"
20.657 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.429 secs average thread-runtime
1.589 % difference between max/avg runtime
8.170 GB data processed, per thread
261.429 GB data processed, total
2.528 nsecs/byte/thread runtime
0.395 GB/sec/thread speed
12.656 GB/sec total speed
# Running 1x32-bw-process, "perf bench numa mem -p 1 -t 32 -P 2048 -s 20 -zZ0q --thp 1"
22.981 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
21.996 secs average thread-runtime
6.486 % difference between max/avg runtime
8.863 GB data processed, per thread
283.606 GB data processed, total
2.593 nsecs/byte/thread runtime
0.386 GB/sec/thread speed
12.341 GB/sec total speed
# Running numa02-bw, "perf bench numa mem -p 1 -t 32 -T 32 -s 20 -zZ0q --thp 1"
20.047 secs slowest (max) thread-runtime
19.000 secs fastest (min) thread-runtime
20.026 secs average thread-runtime
2.611 % difference between max/avg runtime
8.441 GB data processed, per thread
270.111 GB data processed, total
2.375 nsecs/byte/thread runtime
0.421 GB/sec/thread speed
13.474 GB/sec total speed
# Running numa02-bw-NOTHP, "perf bench numa mem -p 1 -t 32 -T 32 -s 20 -zZ0q --thp 1 --thp -1"
20.088 secs slowest (max) thread-runtime
19.000 secs fastest (min) thread-runtime
20.025 secs average thread-runtime
2.709 % difference between max/avg runtime
8.411 GB data processed, per thread
269.142 GB data processed, total
2.388 nsecs/byte/thread runtime
0.419 GB/sec/thread speed
13.398 GB/sec total speed
# Running numa01-bw-thread, "perf bench numa mem -p 2 -t 16 -T 192 -s 20 -zZ0q --thp 1"
20.293 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.175 secs average thread-runtime
0.721 % difference between max/avg runtime
7.918 GB data processed, per thread
253.374 GB data processed, total
2.563 nsecs/byte/thread runtime
0.390 GB/sec/thread speed
12.486 GB/sec total speed
# Running numa01-bw-thread-NOTHP, "perf bench numa mem -p 2 -t 16 -T 192 -s 20 -zZ0q --thp 1 --thp -1"
20.411 secs slowest (max) thread-runtime
20.000 secs fastest (min) thread-runtime
20.226 secs average thread-runtime
1.006 % difference between max/avg runtime
7.931 GB data processed, per thread
253.778 GB data processed, total
2.574 nsecs/byte/thread runtime
0.389 GB/sec/thread speed
12.434 GB/sec total speed
#
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20201012161611.366482-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Pass a build_id object to filename__read_build_id function, so it can
populate the size of the build_id object.
Changing filename__read_build_id() code for both ELF/non-ELF code.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20201013192441.1299447-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Replace build_id byte array with struct build_id object and all the code
that references it.
The objective is to carry size together with build id array, so it's
better to keep both together.
This is preparatory change for following patches, and there's no
functional change.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20201013192441.1299447-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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For comparison, it now runs the benchmark twice - one if regular -b and
another for --buildid-all.
$ perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 21.002 msec (+- 0.172 msec)
Average time per event: 2.059 usec (+- 0.017 usec)
Average memory usage: 8169 KB (+- 0 KB)
Average build-id-all injection took: 19.543 msec (+- 0.124 msec)
Average time per event: 1.916 usec (+- 0.012 usec)
Average memory usage: 7348 KB (+- 0 KB)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Sometimes I can see that 'perf record' piped with 'perf inject' take a
long time processing build-ids.
So introduce a inject-build-id benchmark to the internals benchmark
suite to measure its overhead regularly.
It runs the 'perf inject' command internally and feeds the given number
of synthesized events (MMAP2 + SAMPLE basically).
Usage: perf bench internals inject-build-id <options>
-i, --iterations <n> Number of iterations used to compute average (default: 100)
-m, --nr-mmaps <n> Number of mmap events for each iteration (default: 100)
-n, --nr-samples <n> Number of sample events per mmap event (default: 100)
-v, --verbose be more verbose (show iteration count, DSO name, etc)
By default, it measures average processing time of 100 MMAP2 events
and 10000 SAMPLE events. Below is a result on my laptop.
$ perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 25.789 msec (+- 0.202 msec)
Average time per event: 2.528 usec (+- 0.020 usec)
Average memory usage: 8411 KB (+- 7 KB)
Committer testing:
$ perf bench
Usage:
perf bench [<common options>] <collection> <benchmark> [<options>]
# List of all available benchmark collections:
sched: Scheduler and IPC benchmarks
syscall: System call benchmarks
mem: Memory access benchmarks
numa: NUMA scheduling and MM benchmarks
futex: Futex stressing benchmarks
epoll: Epoll stressing benchmarks
internals: Perf-internals benchmarks
all: All benchmarks
$ perf bench internals
# List of available benchmarks for collection 'internals':
synthesize: Benchmark perf event synthesis
kallsyms-parse: Benchmark kallsyms parsing
inject-build-id: Benchmark build-id injection
$ perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.202 msec (+- 0.059 msec)
Average time per event: 1.392 usec (+- 0.006 usec)
Average memory usage: 12650 KB (+- 10 KB)
Average build-id-all injection took: 12.831 msec (+- 0.071 msec)
Average time per event: 1.258 usec (+- 0.007 usec)
Average memory usage: 11895 KB (+- 10 KB)
$
$ perf stat -r5 perf bench internals inject-build-id
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.380 msec (+- 0.056 msec)
Average time per event: 1.410 usec (+- 0.006 usec)
Average memory usage: 12608 KB (+- 11 KB)
Average build-id-all injection took: 11.889 msec (+- 0.064 msec)
Average time per event: 1.166 usec (+- 0.006 usec)
Average memory usage: 11838 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.246 msec (+- 0.065 msec)
Average time per event: 1.397 usec (+- 0.006 usec)
Average memory usage: 12744 KB (+- 10 KB)
Average build-id-all injection took: 12.019 msec (+- 0.066 msec)
Average time per event: 1.178 usec (+- 0.006 usec)
Average memory usage: 11963 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.321 msec (+- 0.067 msec)
Average time per event: 1.404 usec (+- 0.007 usec)
Average memory usage: 12690 KB (+- 10 KB)
Average build-id-all injection took: 11.909 msec (+- 0.041 msec)
Average time per event: 1.168 usec (+- 0.004 usec)
Average memory usage: 11938 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.287 msec (+- 0.059 msec)
Average time per event: 1.401 usec (+- 0.006 usec)
Average memory usage: 12864 KB (+- 10 KB)
Average build-id-all injection took: 11.862 msec (+- 0.058 msec)
Average time per event: 1.163 usec (+- 0.006 usec)
Average memory usage: 12103 KB (+- 10 KB)
# Running 'internals/inject-build-id' benchmark:
Average build-id injection took: 14.402 msec (+- 0.053 msec)
Average time per event: 1.412 usec (+- 0.005 usec)
Average memory usage: 12876 KB (+- 10 KB)
Average build-id-all injection took: 11.826 msec (+- 0.061 msec)
Average time per event: 1.159 usec (+- 0.006 usec)
Average memory usage: 12111 KB (+- 10 KB)
Performance counter stats for 'perf bench internals inject-build-id' (5 runs):
4,267.48 msec task-clock:u # 1.502 CPUs utilized ( +- 0.14% )
0 context-switches:u # 0.000 K/sec
0 cpu-migrations:u # 0.000 K/sec
102,092 page-faults:u # 0.024 M/sec ( +- 0.08% )
3,894,589,578 cycles:u # 0.913 GHz ( +- 0.19% ) (83.49%)
140,078,421 stalled-cycles-frontend:u # 3.60% frontend cycles idle ( +- 0.77% ) (83.34%)
948,581,189 stalled-cycles-backend:u # 24.36% backend cycles idle ( +- 0.46% ) (83.25%)
5,835,587,719 instructions:u # 1.50 insn per cycle
# 0.16 stalled cycles per insn ( +- 0.21% ) (83.24%)
1,267,423,636 branches:u # 296.996 M/sec ( +- 0.22% ) (83.12%)
17,484,290 branch-misses:u # 1.38% of all branches ( +- 0.12% ) (83.55%)
2.84176 +- 0.00222 seconds time elapsed ( +- 0.08% )
$
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- Extend the recovery from MCE in kernel space also to processes which
encounter an MCE in kernel space but while copying from user memory
by sending them a SIGBUS on return to user space and umapping the
faulty memory, by Tony Luck and Youquan Song.
- memcpy_mcsafe() rework by splitting the functionality into
copy_mc_to_user() and copy_mc_to_kernel(). This, as a result, enables
support for new hardware which can recover from a machine check
encountered during a fast string copy and makes that the default and
lets the older hardware which does not support that advance recovery,
opt in to use the old, fragile, slow variant, by Dan Williams.
- New AMD hw enablement, by Yazen Ghannam and Akshay Gupta.
- Do not use MSR-tracing accessors in #MC context and flag any fault
while accessing MCA architectural MSRs as an architectural violation
with the hope that such hw/fw misdesigns are caught early during the
hw eval phase and they don't make it into production.
- Misc fixes, improvements and cleanups, as always.
* tag 'ras_updates_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Allow for copy_mc_fragile symbol checksum to be generated
x86/mce: Decode a kernel instruction to determine if it is copying from user
x86/mce: Recover from poison found while copying from user space
x86/mce: Avoid tail copy when machine check terminated a copy from user
x86/mce: Add _ASM_EXTABLE_CPY for copy user access
x86/mce: Provide method to find out the type of an exception handler
x86/mce: Pass pointer to saved pt_regs to severity calculation routines
x86/copy_mc: Introduce copy_mc_enhanced_fast_string()
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
x86/mce: Drop AMD-specific "DEFERRED" case from Intel severity rule list
x86/mce: Add Skylake quirk for patrol scrub reported errors
RAS/CEC: Convert to DEFINE_SHOW_ATTRIBUTE()
x86/mce: Annotate mce_rd/wrmsrl() with noinstr
x86/mce/dev-mcelog: Do not update kflags on AMD systems
x86/mce: Stop mce_reign() from re-computing severity for every CPU
x86/mce: Make mce_rdmsrl() panic on an inaccessible MSR
x86/mce: Increase maximum number of banks to 64
x86/mce: Delay clearing IA32_MCG_STATUS to the end of do_machine_check()
x86/MCE/AMD, EDAC/mce_amd: Remove struct smca_hwid.xec_bitmap
RAS/CEC: Fix cec_init() prototype
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In reaction to a proposal to introduce a memcpy_mcsafe_fast()
implementation Linus points out that memcpy_mcsafe() is poorly named
relative to communicating the scope of the interface. Specifically what
addresses are valid to pass as source, destination, and what faults /
exceptions are handled.
Of particular concern is that even though x86 might be able to handle
the semantics of copy_mc_to_user() with its common copy_user_generic()
implementation other archs likely need / want an explicit path for this
case:
On Fri, May 1, 2020 at 11:28 AM Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
> On Thu, Apr 30, 2020 at 6:21 PM Dan Williams <dan.j.williams@intel.com> wrote:
> >
> > However now I see that copy_user_generic() works for the wrong reason.
> > It works because the exception on the source address due to poison
> > looks no different than a write fault on the user address to the
> > caller, it's still just a short copy. So it makes copy_to_user() work
> > for the wrong reason relative to the name.
>
> Right.
>
> And it won't work that way on other architectures. On x86, we have a
> generic function that can take faults on either side, and we use it
> for both cases (and for the "in_user" case too), but that's an
> artifact of the architecture oddity.
>
> In fact, it's probably wrong even on x86 - because it can hide bugs -
> but writing those things is painful enough that everybody prefers
> having just one function.
Replace a single top-level memcpy_mcsafe() with either
copy_mc_to_user(), or copy_mc_to_kernel().
Introduce an x86 copy_mc_fragile() name as the rename for the
low-level x86 implementation formerly named memcpy_mcsafe(). It is used
as the slow / careful backend that is supplanted by a fast
copy_mc_generic() in a follow-on patch.
One side-effect of this reorganization is that separating copy_mc_64.S
to its own file means that perf no longer needs to track dependencies
for its memcpy_64.S benchmarks.
[ bp: Massage a bit. ]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: <stable@vger.kernel.org>
Link: http://lore.kernel.org/r/CAHk-=wjSqtXAqfUJxFtWNwmguFASTgB0dz1dT3V-78Quiezqbg@mail.gmail.com
Link: https://lkml.kernel.org/r/160195561680.2163339.11574962055305783722.stgit@dwillia2-desk3.amr.corp.intel.com
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Memory sanitizer warns if a write is performed where the memory being
read for the write is uninitialized. Avoid this warning by initializing
the memory.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200912053725.1405857-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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IS_ERR(perf_session__new())
In case of error, the function perf_session__new() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR()
Committer notes:
This wasn't compiling due to an extraneous '{' not matched by a '}', fix
it.
Fixes: 13edc237200c ("perf bench: Add a multi-threaded synthesize benchmark")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200902140526.26916-1-yuehaibing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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In the function parse_nodes_opt(), the statement "return 0;" is dead
code, remove it.
Signed-off-by: Peng Fan <fanpeng@loongson.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/1597401894-27549-1-git-send-email-fanpeng@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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It is currently assumed that each node contains at most nr_cpus/nr_nodes
CPUs and nodes' CPU ranges do not overlap.
That assumption is generally incorrect as there are archs where a CPU
number does not depend on to its node number.
This update removes the described assumption by simply calling
numa_node_to_cpus() interface and using the returned mask for binding
CPUs to nodes.
Also, variable types and names made consistent in functions using
cpumask.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Balamuruhan S <bala24@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Link: http://lore.kernel.org/lkml/20200813113247.GA2014@oc3871087118.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Couple numa_allocate_cpumask() and numa_free_cpumask() functions
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Balamuruhan S <bala24@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Link: http://lore.kernel.org/lkml/20200813113041.GA1685@oc3871087118.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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For memcpy, the source pages are memset to zero only when --cycles is
used. This leads to wildly different results with or without --cycles,
since all sources pages are likely to be mapped to the same zero page
without explicit writes.
Before this fix:
$ export cmd="./perf stat -e LLC-loads -- ./perf bench \
mem memcpy -s 1024MB -l 100 -f default"
$ $cmd
2,935,826 LLC-loads
3.821677452 seconds time elapsed
$ $cmd --cycles
217,533,436 LLC-loads
8.616725985 seconds time elapsed
After this fix:
$ $cmd
214,459,686 LLC-loads
8.674301124 seconds time elapsed
$ $cmd --cycles
214,758,651 LLC-loads
8.644480006 seconds time elapsed
Fixes: 47b5757bac03c338 ("perf bench mem: Move boilerplate memory allocation to the infrastructure")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel@axis.com
Link: http://lore.kernel.org/lkml/20200810133404.30829-1-vincent.whitchurch@axis.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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There are a couple of spelling mistakes in the text. Fix these.
Signed-off-by: Colin King <colin.king@canonical.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-janitors@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200812064647.200132-1-colin.king@canonical.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Standard benchmark names let users know the tests specifics. For
example "2x1-bw-process" name tells that two processes one thread each
are run and the RAM bandwidth is measured.
Several benchmarks names do not correspond to their actual running
configuration. Fix that and also some whitespace and comment
inconsistencies.
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/6b6f2084f132ee8e9203dc7c32f9deb209b87a68.1597004831.git.agordeev@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/d949f5f48e17fc816f3beecf8479f1b2480345e4.1597004831.git.agordeev@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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for_each_set_bit, or similar functions like for_each_cpu, may be hot
within the kernel. If many bits were set then one could imagine on Intel
a "bt" instruction with every bit may be faster than the function call
and word length find_next_bit logic. Add a benchmark to measure this.
This benchmark on AMD rome and Intel skylakex shows "bt" is not a good
option except for very small bitmaps.
Committer testing:
# perf bench
Usage:
perf bench [<common options>] <collection> <benchmark> [<options>]
# List of all available benchmark collections:
sched: Scheduler and IPC benchmarks
syscall: System call benchmarks
mem: Memory access benchmarks
numa: NUMA scheduling and MM benchmarks
futex: Futex stressing benchmarks
epoll: Epoll stressing benchmarks
internals: Perf-internals benchmarks
all: All benchmarks
# perf bench mem
# List of available benchmarks for collection 'mem':
memcpy: Benchmark for memcpy() functions
memset: Benchmark for memset() functions
find_bit: Benchmark for find_bit() functions
all: Run all memory access benchmarks
# perf bench mem find_bit
# Running 'mem/find_bit' benchmark:
100000 operations 1 bits set of 1 bits
Average for_each_set_bit took: 730.200 usec (+- 6.468 usec)
Average test_bit loop took: 366.200 usec (+- 4.652 usec)
100000 operations 1 bits set of 2 bits
Average for_each_set_bit took: 781.000 usec (+- 24.247 usec)
Average test_bit loop took: 550.200 usec (+- 4.152 usec)
100000 operations 2 bits set of 2 bits
Average for_each_set_bit took: 1113.400 usec (+- 112.340 usec)
Average test_bit loop took: 1098.500 usec (+- 182.834 usec)
100000 operations 1 bits set of 4 bits
Average for_each_set_bit took: 843.800 usec (+- 8.772 usec)
Average test_bit loop took: 948.800 usec (+- 10.278 usec)
100000 operations 2 bits set of 4 bits
Average for_each_set_bit took: 1185.800 usec (+- 114.345 usec)
Average test_bit loop took: 1473.200 usec (+- 175.498 usec)
100000 operations 4 bits set of 4 bits
Average for_each_set_bit took: 1769.667 usec (+- 233.177 usec)
Average test_bit loop took: 1864.933 usec (+- 187.470 usec)
100000 operations 1 bits set of 8 bits
Average for_each_set_bit took: 898.000 usec (+- 21.755 usec)
Average test_bit loop took: 1768.400 usec (+- 23.672 usec)
100000 operations 2 bits set of 8 bits
Average for_each_set_bit took: 1244.900 usec (+- 116.396 usec)
Average test_bit loop took: 2201.800 usec (+- 145.398 usec)
100000 operations 4 bits set of 8 bits
Average for_each_set_bit took: 1822.533 usec (+- 231.554 usec)
Average test_bit loop took: 2569.467 usec (+- 168.453 usec)
100000 operations 8 bits set of 8 bits
Average for_each_set_bit took: 2845.100 usec (+- 441.365 usec)
Average test_bit loop took: 3023.300 usec (+- 219.575 usec)
100000 operations 1 bits set of 16 bits
Average for_each_set_bit took: 923.400 usec (+- 17.560 usec)
Average test_bit loop took: 3240.000 usec (+- 16.492 usec)
100000 operations 2 bits set of 16 bits
Average for_each_set_bit took: 1264.300 usec (+- 114.034 usec)
Average test_bit loop took: 3714.400 usec (+- 158.898 usec)
100000 operations 4 bits set of 16 bits
Average for_each_set_bit took: 1817.867 usec (+- 222.199 usec)
Average test_bit loop took: 4015.333 usec (+- 154.162 usec)
100000 operations 8 bits set of 16 bits
Average for_each_set_bit took: 2826.350 usec (+- 433.457 usec)
Average test_bit loop took: 4460.350 usec (+- 210.762 usec)
100000 operations 16 bits set of 16 bits
Average for_each_set_bit took: 4615.600 usec (+- 809.350 usec)
Average test_bit loop took: 5129.960 usec (+- 320.821 usec)
100000 operations 1 bits set of 32 bits
Average for_each_set_bit took: 904.400 usec (+- 14.250 usec)
Average test_bit loop took: 6194.000 usec (+- 29.254 usec)
100000 operations 2 bits set of 32 bits
Average for_each_set_bit took: 1252.700 usec (+- 116.432 usec)
Average test_bit loop took: 6652.400 usec (+- 154.352 usec)
100000 operations 4 bits set of 32 bits
Average for_each_set_bit took: 1824.200 usec (+- 229.133 usec)
Average test_bit loop took: 6961.733 usec (+- 154.682 usec)
100000 operations 8 bits set of 32 bits
Average for_each_set_bit took: 2823.950 usec (+- 432.296 usec)
Average test_bit loop took: 7351.900 usec (+- 193.626 usec)
100000 operations 16 bits set of 32 bits
Average for_each_set_bit took: 4552.560 usec (+- 785.141 usec)
Average test_bit loop took: 7998.360 usec (+- 305.629 usec)
100000 operations 32 bits set of 32 bits
Average for_each_set_bit took: 7557.067 usec (+- 1407.702 usec)
Average test_bit loop took: 9072.400 usec (+- 513.209 usec)
100000 operations 1 bits set of 64 bits
Average for_each_set_bit took: 896.800 usec (+- 14.389 usec)
Average test_bit loop took: 11927.200 usec (+- 68.862 usec)
100000 operations 2 bits set of 64 bits
Average for_each_set_bit took: 1230.400 usec (+- 111.731 usec)
Average test_bit loop took: 12478.600 usec (+- 189.382 usec)
100000 operations 4 bits set of 64 bits
Average for_each_set_bit took: 1844.733 usec (+- 244.826 usec)
Average test_bit loop took: 12911.467 usec (+- 206.246 usec)
100000 operations 8 bits set of 64 bits
Average for_each_set_bit took: 2779.300 usec (+- 413.612 usec)
Average test_bit loop took: 13372.650 usec (+- 239.623 usec)
100000 operations 16 bits set of 64 bits
Average for_each_set_bit took: 4423.920 usec (+- 748.240 usec)
Average test_bit loop took: 13995.800 usec (+- 318.427 usec)
100000 operations 32 bits set of 64 bits
Average for_each_set_bit took: 7580.600 usec (+- 1462.407 usec)
Average test_bit loop took: 15063.067 usec (+- 516.477 usec)
100000 operations 64 bits set of 64 bits
Average for_each_set_bit took: 13391.514 usec (+- 2765.371 usec)
Average test_bit loop took: 16974.914 usec (+- 916.936 usec)
100000 operations 1 bits set of 128 bits
Average for_each_set_bit took: 1153.800 usec (+- 124.245 usec)
Average test_bit loop took: 26959.000 usec (+- 714.047 usec)
100000 operations 2 bits set of 128 bits
Average for_each_set_bit took: 1445.200 usec (+- 113.587 usec)
Average test_bit loop took: 25798.800 usec (+- 512.908 usec)
100000 operations 4 bits set of 128 bits
Average for_each_set_bit took: 1990.933 usec (+- 219.362 usec)
Average test_bit loop took: 25589.400 usec (+- 348.288 usec)
100000 operations 8 bits set of 128 bits
Average for_each_set_bit took: 2963.000 usec (+- 419.487 usec)
Average test_bit loop took: 25690.050 usec (+- 262.025 usec)
100000 operations 16 bits set of 128 bits
Average for_each_set_bit took: 4585.200 usec (+- 741.734 usec)
Average test_bit loop took: 26125.040 usec (+- 274.127 usec)
100000 operations 32 bits set of 128 bits
Average for_each_set_bit took: 7626.200 usec (+- 1404.950 usec)
Average test_bit loop took: 27038.867 usec (+- 442.554 usec)
100000 operations 64 bits set of 128 bits
Average for_each_set_bit took: 13343.371 usec (+- 2686.460 usec)
Average test_bit loop took: 28936.543 usec (+- 883.257 usec)
100000 operations 128 bits set of 128 bits
Average for_each_set_bit took: 23442.950 usec (+- 4880.541 usec)
Average test_bit loop took: 32484.125 usec (+- 1691.931 usec)
100000 operations 1 bits set of 256 bits
Average for_each_set_bit took: 1183.000 usec (+- 32.073 usec)
Average test_bit loop took: 50114.600 usec (+- 198.880 usec)
100000 operations 2 bits set of 256 bits
Average for_each_set_bit took: 1550.000 usec (+- 124.550 usec)
Average test_bit loop took: 50334.200 usec (+- 128.425 usec)
100000 operations 4 bits set of 256 bits
Average for_each_set_bit took: 2164.333 usec (+- 246.359 usec)
Average test_bit loop took: 49959.867 usec (+- 188.035 usec)
100000 operations 8 bits set of 256 bits
Average for_each_set_bit took: 3211.200 usec (+- 454.829 usec)
Average test_bit loop took: 50140.850 usec (+- 176.046 usec)
100000 operations 16 bits set of 256 bits
Average for_each_set_bit took: 5181.640 usec (+- 882.726 usec)
Average test_bit loop took: 51003.160 usec (+- 419.601 usec)
100000 operations 32 bits set of 256 bits
Average for_each_set_bit took: 8369.333 usec (+- 1513.150 usec)
Average test_bit loop took: 52096.700 usec (+- 573.022 usec)
100000 operations 64 bits set of 256 bits
Average for_each_set_bit took: 13866.857 usec (+- 2649.393 usec)
Average test_bit loop took: 53989.600 usec (+- 938.808 usec)
100000 operations 128 bits set of 256 bits
Average for_each_set_bit took: 23588.350 usec (+- 4724.222 usec)
Average test_bit loop took: 57300.625 usec (+- 1625.962 usec)
100000 operations 256 bits set of 256 bits
Average for_each_set_bit took: 42752.200 usec (+- 9202.084 usec)
Average test_bit loop took: 64426.933 usec (+- 3402.326 usec)
100000 operations 1 bits set of 512 bits
Average for_each_set_bit took: 1632.000 usec (+- 229.954 usec)
Average test_bit loop took: 98090.000 usec (+- 1120.435 usec)
100000 operations 2 bits set of 512 bits
Average for_each_set_bit took: 1937.700 usec (+- 148.902 usec)
Average test_bit loop took: 100364.100 usec (+- 1433.219 usec)
100000 operations 4 bits set of 512 bits
Average for_each_set_bit took: 2528.000 usec (+- 243.654 usec)
Average test_bit loop took: 99932.067 usec (+- 955.868 usec)
100000 operations 8 bits set of 512 bits
Average for_each_set_bit took: 3734.100 usec (+- 512.359 usec)
Average test_bit loop took: 98944.750 usec (+- 812.070 usec)
100000 operations 16 bits set of 512 bits
Average for_each_set_bit took: 5551.400 usec (+- 846.605 usec)
Average test_bit loop took: 98691.600 usec (+- 654.753 usec)
100000 operations 32 bits set of 512 bits
Average for_each_set_bit took: 8594.500 usec (+- 1446.072 usec)
Average test_bit loop took: 99176.867 usec (+- 579.990 usec)
100000 operations 64 bits set of 512 bits
Average for_each_set_bit took: 13840.743 usec (+- 2527.055 usec)
Average test_bit loop took: 100758.743 usec (+- 833.865 usec)
100000 operations 128 bits set of 512 bits
Average for_each_set_bit took: 23185.925 usec (+- 4532.910 usec)
Average test_bit loop took: 103786.700 usec (+- 1475.276 usec)
100000 operations 256 bits set of 512 bits
Average for_each_set_bit took: 40322.400 usec (+- 8341.802 usec)
Average test_bit loop took: 109433.378 usec (+- 2742.615 usec)
100000 operations 512 bits set of 512 bits
Average for_each_set_bit took: 71804.540 usec (+- 15436.546 usec)
Average test_bit loop took: 120255.440 usec (+- 5252.777 usec)
100000 operations 1 bits set of 1024 bits
Average for_each_set_bit took: 1859.600 usec (+- 27.969 usec)
Average test_bit loop took: 187676.000 usec (+- 1337.770 usec)
100000 operations 2 bits set of 1024 bits
Average for_each_set_bit took: 2273.600 usec (+- 139.420 usec)
Average test_bit loop took: 188176.000 usec (+- 684.357 usec)
100000 operations 4 bits set of 1024 bits
Average for_each_set_bit took: 2940.400 usec (+- 268.213 usec)
Average test_bit loop took: 189172.600 usec (+- 593.295 usec)
100000 operations 8 bits set of 1024 bits
Average for_each_set_bit took: 4224.200 usec (+- 547.933 usec)
Average test_bit loop took: 190257.250 usec (+- 621.021 usec)
100000 operations 16 bits set of 1024 bits
Average for_each_set_bit took: 6090.560 usec (+- 877.975 usec)
Average test_bit loop took: 190143.880 usec (+- 503.753 usec)
100000 operations 32 bits set of 1024 bits
Average for_each_set_bit took: 9178.800 usec (+- 1475.136 usec)
Average test_bit loop took: 190757.100 usec (+- 494.757 usec)
100000 operations 64 bits set of 1024 bits
Average for_each_set_bit took: 14441.457 usec (+- 2545.497 usec)
Average test_bit loop took: 192299.486 usec (+- 795.251 usec)
100000 operations 128 bits set of 1024 bits
Average for_each_set_bit took: 23623.825 usec (+- 4481.182 usec)
Average test_bit loop took: 194885.550 usec (+- 1300.817 usec)
100000 operations 256 bits set of 1024 bits
Average for_each_set_bit took: 40194.956 usec (+- 8109.056 usec)
Average test_bit loop took: 200259.311 usec (+- 2566.085 usec)
100000 operations 512 bits set of 1024 bits
Average for_each_set_bit took: 70983.560 usec (+- 15074.982 usec)
Average test_bit loop took: 210527.460 usec (+- 4968.980 usec)
100000 operations 1024 bits set of 1024 bits
Average for_each_set_bit took: 136530.345 usec (+- 31584.400 usec)
Average test_bit loop took: 233329.691 usec (+- 10814.036 usec)
100000 operations 1 bits set of 2048 bits
Average for_each_set_bit took: 3077.600 usec (+- 76.376 usec)
Average test_bit loop took: 402154.400 usec (+- 518.571 usec)
100000 operations 2 bits set of 2048 bits
Average for_each_set_bit took: 3508.600 usec (+- 148.350 usec)
Average test_bit loop took: 403814.500 usec (+- 1133.027 usec)
100000 operations 4 bits set of 2048 bits
Average for_each_set_bit took: 4219.333 usec (+- 285.844 usec)
Average test_bit loop took: 404312.533 usec (+- 985.751 usec)
100000 operations 8 bits set of 2048 bits
Average for_each_set_bit took: 5670.550 usec (+- 615.238 usec)
Average test_bit loop took: 405321.800 usec (+- 1038.487 usec)
100000 operations 16 bits set of 2048 bits
Average for_each_set_bit took: 7785.080 usec (+- 992.522 usec)
Average test_bit loop took: 406746.160 usec (+- 1015.478 usec)
100000 operations 32 bits set of 2048 bits
Average for_each_set_bit took: 11163.800 usec (+- 1627.320 usec)
Average test_bit loop took: 406124.267 usec (+- 898.785 usec)
100000 operations 64 bits set of 2048 bits
Average for_each_set_bit took: 16964.629 usec (+- 2806.130 usec)
Average test_bit loop took: 406618.514 usec (+- 798.356 usec)
100000 operations 128 bits set of 2048 bits
Average for_each_set_bit took: 27219.625 usec (+- 4988.458 usec)
Average test_bit loop took: 410149.325 usec (+- 1705.641 usec)
100000 operations 256 bits set of 2048 bits
Average for_each_set_bit took: 45138.578 usec (+- 8831.021 usec)
Average test_bit loop took: 415462.467 usec (+- 2725.418 usec)
100000 operations 512 bits set of 2048 bits
Average for_each_set_bit took: 77450.540 usec (+- 15962.238 usec)
Average test_bit loop took: 426089.180 usec (+- 5171.788 usec)
100000 operations 1024 bits set of 2048 bits
Average for_each_set_bit took: 138023.636 usec (+- 29826.959 usec)
Average test_bit loop took: 446346.636 usec (+- 9904.417 usec)
100000 operations 2048 bits set of 2048 bits
Average for_each_set_bit took: 251072.600 usec (+- 55947.692 usec)
Average test_bit loop took: 484855.983 usec (+- 18970.431 usec)
#
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20200729220034.1337168-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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