summaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAgeFilesLines
* perf tests: Add attr record no delay testJiri Olsa2012-11-051-0/+9
| | | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -D' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-16-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record raw testJiri Olsa2012-11-051-0/+7
| | | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -R' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-15-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record data testJiri Olsa2012-11-051-0/+8
| | | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -d' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-14-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record no-inherit testJiri Olsa2012-11-011-0/+7
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -i' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-13-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record no samples testJiri Olsa2012-11-011-0/+6
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -n' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-12-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record period testJiri Olsa2012-11-011-0/+7
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -c 100 -P' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-11-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record graph testJiri Olsa2012-11-013-0/+22
| | | | | | | | | | | | | | | | Adding tests to validate perf_event_attr data for commands: 'record -g --' 'record -g fp 'record -g dwarf Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-10-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record count testJiri Olsa2012-11-011-0/+8
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -c 123' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-9-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record freq testJiri Olsa2012-11-011-0/+6
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record -F 100' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-8-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record event syntax group testJiri Olsa2012-11-011-0/+20
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record group -e {cycles,instructions}' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-7-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record group testJiri Olsa2012-11-011-0/+17
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record --group -e cycles,instructions' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-6-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr tests under builtin test commandJiri Olsa2012-11-014-0/+49
| | | | | | | | | | | | | | | | | The test attr suite is run only if it's run under perf source directory, or tests are found in installed path. Otherwise tests are omitted (notification is displayed) and finished as successful. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-25-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add attr record basic testJiri Olsa2012-11-012-0/+45
| | | | | | | | | | | | | | Adding test to validate perf_event_attr data for command: 'record' Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Add framework for automated perf_event_attr testsJiri Olsa2012-10-315-2/+470
| | | | | | | | | | | | | | | | | | | | | | The idea is run perf session with kidnapping sys_perf_event_open function. For each sys_perf_event_open call we store the perf_event_attr data to the file to be checked later against what we expect. You can run this by: $ python ./tests/attr.py -d ./tests/attr/ -p ./perf -v v2 changes: - preserve errno value in the hook Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20121031145247.GB1027@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tests: Move test objects into 'tests' directoryJiri Olsa2012-10-314-8/+9
| | | | | | | | | | | | | Separating test objects into 'tests' directory. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf browser: Don't show scripts menu for 'perf top'Feng Tang2012-10-311-2/+10
| | | | | | | | | | | | | | As 'perf top' has no data files to run scripts against. Also add a is_report_browser() helper function to judge whether the running browser is for 'perf report'. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351699257-5102-1-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove BINDIR define from exec_cmd.o compilationJiri Olsa2012-10-311-1/+0
| | | | | | | | | | | | | It's not needed. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351634526-1516-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf annotate: Handle XBEGIN like a jumpAndi Kleen2012-10-311-0/+2
| | | | | | | | | | | | | So that the browser still shows the abort label. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1351643663-23828-18-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Handle --version string generation on machines without gitArnaldo Carvalho de Melo2012-10-311-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If git is installed we'll have a 'perf --version' output of this form: $ make -j8 -C tools/perf/ O=/home/acme/git/build/perf install $ perf --version perf version 3.7.rc3.g3afad6 Now on a machine without git installed: $ mv /home/acme/bin/git /home/acme/bin/git.OFF $ make -j8 -C tools/perf/ O=/home/acme/git/build/perf install $ perf --version perf version 3.7.0-rc2 That is, no error message due to git not being installed will appear on the screen and instead the version string in the top level Makefile will be used. Requested-by: Ingo Molnar <mingo@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-am6yp6phvxyjmyndxogpunjv@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Further speed up the perf buildIngo Molnar2012-10-311-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's another source of overhead in the perf version string generator: git update-index -q --refresh ... which will iterate the whole checked out tree. This can be pretty slow on NFS volumes, but takes some time even with local SSD disks and a fully cached kernel tree: $ perf stat --null --repeat 3 --pre "rm -f PERF-VERSION-FILE" util/PERF-VERSION-GEN PERF_VERSION = 3.7.rc3.g5399b3b.dirty PERF_VERSION = 3.7.rc3.g5399b3b.dirty PERF_VERSION = 3.7.rc3.g5399b3b.dirty Performance counter stats for 'util/PERF-VERSION-GEN' (3 runs): 0.306999221 seconds time elapsed ( +- 0.56% ) So remove the .dirty differentiator as well - it adds little information because locally patched git trees are common, but seldom are the perf tools modified. So a lot of version strings are reported as 'dirty' while in fact they are pristine perf builds. For example 99% of my perf builds are not patched but the kernel tree is slightly patched, which adds the .dirty tag. Eliminating that tag speeds up version generation by another order of magnitude: $ perf stat --null --repeat 3 --sync --pre "rm -f PERF-VERSION-FILE" util/PERF-VERSION-GEN PERF_VERSION = 3.7.rc3.g4b0bd3 PERF_VERSION = 3.7.rc3.g4b0bd3 PERF_VERSION = 3.7.rc3.g4b0bd3 Performance counter stats for 'util/PERF-VERSION-GEN' (3 runs): 0.021270923 seconds time elapsed ( +- 1.94% ) (Also clean up some of the comments around this code.) Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Andrew Vagin <avagin@openvz.org> Cc: Borislav Petkov <bp@amd64.org> Cc: David Howells <dhowells@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20121030085441.GC8245@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Speed up the perf build time by simplifying the perf --version ↵Ingo Molnar2012-10-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | string generation Building perf is pretty slow on trees that have a lot of commits relative to the nearest Git tag. This slowness manifests itself during version string generation: $ perf stat --null --repeat 3 --sync --pre "rm -f PERF-VERSION-FILE" util/PERF-VERSION-GEN PERF_VERSION = 3.7.rc3.1458.g5399b3b PERF_VERSION = 3.7.rc3.1458.g5399b3b PERF_VERSION = 3.7.rc3.1458.g5399b3b Performance counter stats for 'util/PERF-VERSION-GEN' (3 runs): 2.857503976 seconds time elapsed ( +- 0.22% ) The build can be even slower than that, when one over NFS volumes. The reason for the slowness is that util/PERF-VERSION-GEN uses "git describe" to generate the string, which has to count the "number of commits distance" from the nearest tag - the ".1458." count in the output above. For that Git had to extract and decompress 1458 Git objects, which takes time and bandwidth. But this "number of commits" value is mostly irrelevant in practice. We either want to know an approximate tag name, or we want to know the precise sha1. So this patch simplifies the version string to: PERF_VERSION = 3.7.rc3.g5399b3b.dirty which speeds up the version string generation script by an order of magnitude: $ perf stat --null --repeat 3 --sync --pre "rm -f PERF-VERSION-FILE" util/PERF-VERSION-GEN PERF_VERSION = 3.7.rc3.g5399b3b.dirty PERF_VERSION = 3.7.rc3.g5399b3b.dirty PERF_VERSION = 3.7.rc3.g5399b3b.dirty Performance counter stats for 'util/PERF-VERSION-GEN' (3 runs): 0.307633559 seconds time elapsed ( +- 0.84% ) Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Andrew Vagin <avagin@openvz.org> Cc: Borislav Petkov <bp@amd64.org> Cc: David Howells <dhowells@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20121030084600.GB8245@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Add info about cross compiling for Android ARMJoonsoo Kim2012-10-311-1/+4
| | | | | | | | | | | | | | | | | | | | | Without defining ARCH=arm, building perf for Android ARM will fail, because it needs architecture specific files. So add related relevant information to the android documentation. Signed-off-by: Joonsoo Kim <js1304@gmail.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Irina Tirdea <irina.tirdea@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1351518066-4791-1-git-send-email-js1304@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Warn about missing libelfNamhyung Kim2012-10-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When perf detects no libelf during the build, it'll use internal mini elf parser instead of libelf. But as it only supports minimal functionalities, it also disables support to 'probe' builtin command. Currently it didn't warned to user. Fix it. $ sudo apt-get remove libelf-dev $ make CHK -fstack-protector-all CHK -Wstack-protector CHK -Wvolatile-register-var CHK bionic CHK libelf CHK glibc Makefile:491: No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev CHK libunwind CHK libaudit $ make NO_LIBELF=1 CHK -fstack-protector-all CHK -Wstack-protector CHK -Wvolatile-register-var CHK bionic CHK libaudit Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-8ww8zc4hhpxabfskxs3u5ede@git.kernel.org [ committer note: The package needed is elfutils-libelf-devel, not elfutils-devel ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf/x86: Fix sparse warningsPeter Huewe2012-10-301-2/+2
| | | | | | | | | | | | | | | | | | FYI, there are new sparse warnings: arch/x86/kernel/cpu/perf_event.c:1356:18: sparse: symbol 'events_attr' was not declared. Should it be static? This patch makes it static and also adds the static keyword to fix arch/x86/kernel/cpu/perf_event.c:1344:9: warning: symbol 'events_sysfs_show' was not declared. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com> Cc: fengguang.wu@intel.com Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-lerdpXlnruh0yvWs2owwuizl@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2012-10-3034-829/+1196
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements, fixes and code move from Arnaldo Carvalho de Melo: * Initialize 'page_size' variable in the python binding, this was sent for perf/urgent by mistake, then when merging Ingo removed it, fixing the problem for perf/urgent, but when perf/urgent was merged with perf/core, where that initialization is needed, made the python binding mmap call to fail, fix it by initializing page_size again. * Add a browser for 'perf script' and make it available from the report and annotate browsers. It does filtering to find the scripts that handle events found in the perf.data file used. From Feng Tang * Move some functions from symbol.c to more appropriate files, creating dso.[ch] in the process, no code changes. From Jiri Olsa * Fix mmap error output message for when perf_mmap fails and returns !-EPERM, where the default for mmap_pages, INT_MAX, was causing a !power of 2 error message, fix from Jiri Olsa. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * perf python: Initialize 'page_size' variableArnaldo Carvalho de Melo2012-10-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit 0c1fe6b: 'perf tools: Have the page size value available for all tools' Broke the python binding because the global variable 'page_size' is initialized on the main() routine, that is not called when using just the python binding, causing evlist.mmap() to fail because it expects that variable to be initialized to the system's page size. Fix it by initializing it on the binding init routine. Reported-by: David Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-vrvp3azmbfzexnpmkhmvtzzc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf record: Fix mmap error output conditionJiri Olsa2012-10-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mmap_pages default value is not power of 2 (UINT_MAX). Together with perf_evlist__mmap function returning error value different from EPERM, we get misleading error message: "--mmap_pages/-m value must be a power of two." Fixing this by adding extra check for UINT_MAX value for this error condition. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1350743599-4805-12-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf header: Add is_perf_magic() funcFeng Tang2012-10-292-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this function, other modules can basically check whether a file is a legal perf data file by checking its first 8 bytes against all possible perf magic numbers. Change the function name from check_perf_magic to more meaningful is_perf_magic as suggested by acme. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351569369-26732-7-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf hists browser: Integrate script browser into main hists browserFeng Tang2012-10-291-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Integrate the script browser into "perf report" framework, users can use function key 'r' or the drop down menu to list all perf scripts and select one of them, just like they did for the annotation. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351569369-26732-6-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf annotate browser: Integrate script browser into annotation browserFeng Tang2012-10-291-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Integrate the script browser into annotation, users can press function key 'r' to list all perf scripts and select one of them to run that script, the output will be shown in a separate browser. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351569369-26732-5-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf scripts browser: Add a browser for perf scriptFeng Tang2012-10-293-0/+200
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a script browser, so that user can check all the available scripts for current perf data file and run them inside the main perf report or annotation browsers, for all perf samples or for samples belong to one thread/symbol. Please be noted: current script browser is only for report use, and doesn't cover the record phase, IOW it must run against one existing perf data file. The work flow is, users can use function key to list all the available scripts for current perf data file in system and chose one, which will be executed with popen("perf script -s xxx.xx",) and all the output lines are put into one ui browser, pressing 'q' or left arrow key will make it return to previous browser. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351569369-26732-4-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf script: Add more filter to find_scripts()Feng Tang2012-10-291-3/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As suggested by Arnaldo, many scripts have their own usages and need capture specific events or tracepoints, so only those scripts whose target events match the events in current perf data file should be listed in the script browser menu. This patch will add the event match checking, by opening "xxx-record" script to cherry pick out all events name and comparing them with those inside the perf data file. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351569369-26732-3-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Add a global variable "const char *input_name"Feng Tang2012-10-2911-29/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently many perf commands annotate/evlist/report/script/lock etc all support "-i" option to chose a specific perf data, and all of them create a local "input_name" to save the file name for that perf data. Since most of these commands need it, we can add a global variable for it, also it can some other benefits: 1. When calling script browser inside hists/annotation browser, it needs to know the perf data file name to run that script. 2. For further feature like runtime switching to another perf data file, this variable can also help. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1351569369-26732-2-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Move dso_* related functions into dso objectJiri Olsa2012-10-295-726/+751
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving dso_* related functions into dso object. Keeping symbol loading related functions still in the symbol object as it seems more convenient. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351372712-21104-6-git-send-email-jolsa@redhat.com [ committer note: Use "symbol.h" instead of <symbol.h> to make it build with O= ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Move strxfrchar into string objectJiri Olsa2012-10-294-12/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving strxfrchar function into string object. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351372712-21104-5-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Move hex2u64 into util objectJiri Olsa2012-10-294-34/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving hex2u64 function into util object. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351372712-21104-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Move BUILD_ID_SIZE into build-id objectJiri Olsa2012-10-295-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving BUILD_ID_SIZE define into build-id object, plus include related changes. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351372712-21104-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Move build_id__sprintf into build-id objectJiri Olsa2012-10-297-17/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moving build_id__sprintf function into build-id object. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351372712-21104-2-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Move parse_events error printing to parse_events_optionsAndi Kleen2012-10-281-3/+7
|/ | | | | | | | | | | | | | | The callers of parse_events usually have their own error handling. Move the fprintf for a bad event to parse_events_options, which is the only one who should need it. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1351283415-13170-25-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2012-10-269-61/+256
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements from Arnaldo Carvalho de Melo: * perf inject changes to allow showing where a task sleeps, from Andrew Vagin. * Makefile improvements from Namhyung Kim. * Add --pre and --post command hooks in 'stat', from Peter Zijlstra. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * perf stat: Add --pre and --post commandPeter Zijlstra2012-10-262-6/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to measure kernel builds, one has to do some pre/post cleanup work in order to do the repeat build. So provide --pre and --post command hooks to allow doing just that. perf stat --repeat 10 --null --sync --pre 'make -s O=defconfig-build/clean' \ -- make -s -j64 O=defconfig-build/ bzImage Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Stephane Eranian <eranian@gmail.com> Link: http://lkml.kernel.org/r/1350992414.13456.5.camel@twins [ committer note: Added respective entries in Documentation/perf-stat.txt ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf inject: Mark a dso if it's usedAndrew Vagin2012-10-263-8/+17
| | | | | | | | | | | | | | | | | | | | | | | | Otherwise they will be not written in an output file. Signed-off-by: Andrew Vagin <avagin@openvz.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1344344165-369636-5-git-send-email-avagin@openvz.org [ committer note: Fixed up wrt changes made in the immediate previous patches ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf inject: Merge sched_stat_* and sched_switch eventsAndrew Vagin2012-10-262-3/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | You may want to know where and how long a task is sleeping. A callchain may be found in sched_switch and a time slice in stat_iowait, so I add handler in perf inject for merging this events. My code saves sched_switch event for each process and when it meets stat_iowait, it reports the sched_switch event, because this event contains a correct callchain. By another words it replaces all stat_iowait events on proper sched_switch events. I use the next sequence of commands for testing: perf record -e sched:sched_stat_sleep -e sched:sched_switch \ -e sched:sched_process_exit -g -o ~/perf.data.raw \ ~/test-program perf inject -v -s -i ~/perf.data.raw -o ~/perf.data perf report --stdio -i ~/perf.data 100.00% foo [kernel.kallsyms] [k] __schedule | --- __schedule schedule | |--79.75%-- schedule_hrtimeout_range_clock | schedule_hrtimeout_range | poll_schedule_timeout | do_select | core_sys_select | sys_select | system_call_fastpath | __select | __libc_start_main | --20.25%-- do_nanosleep hrtimer_nanosleep sys_nanosleep system_call_fastpath __GI___libc_nanosleep __libc_start_main And here is test-program.c: #include<unistd.h> #include<time.h> #include<sys/select.h> int main() { struct timespec ts1; struct timeval tv1; int i; long s; for (i = 0; i < 10; i++) { ts1.tv_sec = 0; ts1.tv_nsec = 10000000; nanosleep(&ts1, NULL); tv1.tv_sec = 0; tv1.tv_usec = 40000; select(0, NULL, NULL, NULL,&tv1); } return 1; } Signed-off-by: Andrew Vagin <avagin@openvz.org> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1344344165-369636-4-git-send-email-avagin@openvz.org [ committer note: Made it use evsel->handler ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf inject: Work with filesAndrew Vagin2012-10-262-3/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before this patch "perf inject" can only handle data from pipe. I want to use "perf inject" for reworking events. Look at my following patch. v2: add information about new options in tools/perf/Documentation/ Signed-off-by: Andrew Vagin <avagin@openvz.org> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1344344165-369636-2-git-send-email-avagin@openvz.org [ committer note: fixed it up to cope with 5852a44, 5ded57a, 002439e & f62d3f0 ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Fix LIBELF_MMAP checkingNamhyung Kim2012-10-261-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently checking mmap support in libelf failed due to wrong flags. CHK libelf CHK libdw CHK libunwind CHK -DLIBELF_MMAP /tmp/ccYJwdR0.o: In function `main': :(.text+0x18): undefined reference to `elf_begin' collect2: error: ld returned 1 exit status This cannot happen since we checked the elf_begin() when checking libelf and it succeeded. Fix it by using a same flag with libelf checking. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Borislav Petkov <bp@amd64.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351241752-2919-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Always show CHK message when doing try-ccNamhyung Kim2012-10-261-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It might be useful to see what's happening behind us rather than just waiting few seconds during the config checking. Also align the CHK message with other ones. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Borislav Petkov <bp@amd64.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351241752-2919-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Convert invocation of MAKE into SUBDIRNamhyung Kim2012-10-261-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This will show directory change info in a consistent form. Also it can be converted again into David Howell's descend command. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Borislav Petkov <bp@amd64.org> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351241752-2919-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * perf tools: Cleanup doc related targetsNamhyung Kim2012-10-261-37/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | Documentation targets handling rules are duplicate. Consolidate them with DOC_TARGETS and INSTALL_DOC_TARGETS. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Borislav Petkov <bp@amd64.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351241752-2919-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| * tools lib traceevent: Do not generate dependency for system header filesNamhyung Kim2012-10-261-1/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ingo reported (again!) that 'make clean' on perf/traceevent does not work due to some reason with system header file. Quotes Ingo: "Note that the old dependency related build failure thought to be fixed in commit 860df5833e46 is back: make[1]: *** No rule to make target `/usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/stddef.h', needed by `.trace-seq.d'. Stop. 'make clean' itself does not work in libtraceevent: comet:~/tip/tools/lib/traceevent> make clean make: *** No rule to make target `/usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/stddef.h', needed by `.trace-seq.d'. Stop. So I had to clean it out manually: comet:~/tip/tools/lib/traceevent> git ls-files --others | xargs rm comet:~/tip/tools/lib/traceevent> and then things build fine." Try to fix it by excluding system headers from dependency generation. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Reported-by: Ingo Molnar <mingo@kernel.org> Cc: Borislav Petkov <bp@amd64.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1351241752-2919-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar2012-10-263-14/+110
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core trace improvements from Arnaldo Carvalho de Melo: * Don't stop synthesizing threads when one vanishes, this is for the existing threads when we start a tool like trace. * Use sched:sched_stat_runtime to provide a thread summary, this produces the same output as the 'trace summary' subcommand of tglx's original "trace" tool. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 07:30:49 +0100