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* perf inject: Remove static variablesArnaldo Carvalho de Melo2012-10-021-34/+38
| | | | | | | | | | | | | | | | | | | | | We want to reduce the impact that each of the builtins has on perf as a whole, so use the superclassing of perf_tool mechanizm to move its config knobs to the stack, so that only if we use that tool, its impact will be felt. In this case is more about consistency, as the impact of this tool is minimal. 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-z2b3matvawihtenmez9hkcja@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf inject: Remove unused 'input_name' static varArnaldo Carvalho de Melo2012-10-021-2/+1
| | | | | | | | | | | | | | | | If we ever want to allow inject to work with something other than stdin, we can put it back, but so far it is completely unused, so ditch it. 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-qmwpnktckhd43eynnkxgqfpm@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Use evsel->handler.funcArnaldo Carvalho de Melo2012-10-021-45/+87
| | | | | | | | | | | | | | | | | I.e. we don't need to resolve the evsel via the id and then check if it is this or that event, just stash the right handler at evsel creation time, then use evsel->handler.func() straight away. 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-bpz3axzr4f2cjppf4egm28wf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Convert to HAVE_STRLCPYNamhyung Kim2012-10-023-7/+5
| | | | | | | | | | | | For similar reason of previous patches, convert NO_STRLCPY to positive HAVE_STRLCPY. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-13-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Convert to GTK2_SUPPORTNamhyung Kim2012-10-026-36/+36
| | | | | | | | | | | | | | | For building perf without gtk+2, we can set NO_GTK2=1 as a argument of make. It then defines NO_GTK2_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Convert to NEWT_SUPPORTNamhyung Kim2012-10-028-34/+32
| | | | | | | | | | | | | | | For building perf without libnewt, we can set NO_NEWT=1 as a argument of make. It then defines NO_NEWT_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Convert to LIBAUDIT_SUPPORTNamhyung Kim2012-10-022-5/+3
| | | | | | | | | | | | | | | For building perf without libaudit, we can set NO_LIBAUDIT=1 as a argument of make. It then defines NO_LIBAUDIT_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Convert to LIBUNWIND_SUPPORTNamhyung Kim2012-10-024-16/+14
| | | | | | | | | | | | | | | | | | | For building perf without libunwind, we can set NO_LIBUNWIND=1 as a argument of make. It then defines NO_LIBUNWIND_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Also change NO_PERF_REGS macro to HAVE_PERF_REGS for the same reason. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> 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/1348824728-14025-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Convert to LIBELF_SUPPORTNamhyung Kim2012-09-296-14/+13
| | | | | | | | | | | | | | | For building perf without libelf, we can set NO_LIBELF=1 as a argument of make. It then defines NO_LIBELF_SUPPORT macro for C code to do the proper handling. However it usually used in a negative semantics - e.g. #ifndef - so we saw double negations which can be misleading. Convert it to a positive form to make it more readable. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Remove unused PYRF_OBJS variable on MakefileNamhyung Kim2012-09-291-15/+1
| | | | | | | | | | | | | | It seems that the PYRF_OBJS variable is not used anymore or has no effect at least. The util/setup.py tracks its dependency using util/python-ext-sources file and resulting objects are saved under python_ext_build/tmp/. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Move libdw availability check before arch MakefileNamhyung Kim2012-09-291-7/+7
| | | | | | | | | | | | | Since NO_DWARF is used in arch/$(ARCH)/Makefiles, it should be checked before including those files. It was moved by mistake during libelf dependency removal work by me, sorry. Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348824728-14025-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: Add aliases for some syscallsArnaldo Carvalho de Melo2012-09-271-8/+18
| | | | | | | | | | | | | | | | | What we get from audit_syscall_to_name isn't what we find in the syscalls: tracepoint events, so add the alias that allows the tool to find prctl, fstat, fstatat and stat. 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-3m9su7jhwnxvepnr3ne1du5k@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf probe: Print an enum type variable in "enum variable-name" format when ↵Hyeoncheol Lee2012-09-271-0/+2
| | | | | | | | | | | | | showing accessible variables When showing accessible variables, an enum type variable was printed in "variable-name" format. Change this format into "enum variable-name". Signed-off-by: Hyeoncheol Lee <hyc.lee@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Link: http://lkml.kernel.org/r/1348713399-4541-1-git-send-email-hyc.lee@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Check libaudit availability for perf-trace builtinNamhyung Kim2012-09-273-2/+27
| | | | | | | | | | | | | | | | | | | | | The newly added trace command requires an external audit library. However it can cause a build error because it's not checked whether the libaudit is installed on system: CC builtin-trace.o builtin-trace.c:7:22: fatal error: libaudit.h: No such file or directory compilation terminated. make: *** [builtin-trace.o] Error 1 Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.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/1348745018-21744-1-git-send-email-namhyung@kernel.org [ committer note: Added ", disables 'trace tool' to the feature warning msg ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf hists: Add missing period_* fields when collapsing a hist entryNamhyung Kim2012-09-271-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So that the perf report won't lost the cpu utilization information. For example, if there're two process that have same name. $ perf report --stdio --showcpuutilization -s pid [SNIP] # Overhead sys us Command: Pid # ........ ........ ........ ............. # 55.12% 0.01% 55.10% noploop:28781 44.88% 0.06% 44.83% noploop:28782 Before: $ perf report --stdio --showcpuutilization -s comm [SNIP] # Overhead sys us # ........ ........ ........ # 100.00% 0.06% 44.83% After: $ perf report --stdio --showcpuutilization -s comm [SNIP] # Overhead sys us # ........ ........ ........ # 100.00% 0.07% 99.93% Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Arun Sharma <asharma@fb.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> 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> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1348645663-25303-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf trace: New toolArnaldo Carvalho de Melo2012-09-276-1/+358
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initially should look loosely like the venerable 'strace' tool, but using the infrastructure in the perf tools to allow tracing extra targets: [acme@sandy linux]$ perf trace --hell Error: unknown option `hell' usage: perf trace <PID> -p, --pid <pid> trace events on existing process id --tid <tid> trace events on existing thread id --all-cpus system-wide collection from all CPUs --cpu <cpu> list of cpus to monitor --no-inherit child tasks do not inherit counters --mmap-pages <n> number of mmap data pages --uid <user> user to profile [acme@sandy linux]$ Those should have the same semantics as when using with 'perf record'. It gets stuck sometimes, but hey, it works sometimes too! In time it should support perf.data based workloads, i.e. it should have a: -o filename Command line option that will produce a perf.data file that can then be used with 'perf trace' or any of the other perf tools (script, report, etc). It will also eventually have the set of functionalities described in the previous 'trace' prototype by Thomas Gleixner: "Announcing a new utility: 'trace'" http://lwn.net/Articles/415728/ Also planned is to have some of the features suggested in the comments of that LWN article. 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> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Export the event_format constructorArnaldo Carvalho de Melo2012-09-272-1/+4
| | | | | | | | | | | | | | | | It'll be needed in the next patches, where it'll be not associated directly to an evsel. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Introduce rawptr() methodArnaldo Carvalho de Melo2012-09-272-2/+9
| | | | | | | | | | | | | | | | | | Will be used for things like the args field in the raw_syscalls:sys_enter tracepoint. Implement strval with it, its basicaly strval returning void *. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Use perf_evsel__newtp in the event parserArnaldo Carvalho de Melo2012-09-261-30/+16
| | | | | | | | | | | | | | | Elliminating code duplication. 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-9v4zl7ldlp8v6azrpsu5lupk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: The tracepoint constructor should store sys:nameArnaldo Carvalho de Melo2012-09-261-4/+5
| | | | | | | | | | | | | | | Not event_format->name, that doesn't contains the sys: part. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Introduce set_filter() methodArnaldo Carvalho de Melo2012-09-264-18/+48
| | | | | | | | | | | | | | | To apply a filter to all the evsels in an evlist. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evlist: Renane set_filters method to apply_filtersArnaldo Carvalho de Melo2012-09-264-4/+4
| | | | | | | | | | | | | | | | | | | | | Because that is what it really does, i.e. it applies the filters that were parsed from the command line and stashed into the evsels they refer to. We'll need the set_filter method name to actually apply a filter to all the evsels in an evlist, for instance, to ask that a syswide tracer doesn't trace itself. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Add test to check we correctly parse and match syscall open parmsArnaldo Carvalho de Melo2012-09-261-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | It will set up a syscall open tracepoint event, generate an open with invalid flags, then check those flags were the ones reported in the tracepoint fired. For the filename we need vfs:getname, but that will go thru some more iterations as the vfs getname codebase is going thru changes lately. When that is in I'll just check that the perf_evsel__newtp constructor is not bailing out and then add it to the evlist, catch the event and check the filename against the one used in the 'open' call used to trigger the event. Cc: David Ahern <dsahern@gmail.com> Cc: Eric Paris <eparis@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jeff Layton <jlayton@redhat.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-p5w9aq0jcbb91ghzqomowm16@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Handle endianity in intval methodArnaldo Carvalho de Melo2012-09-261-4/+34
| | | | | | | | | | | | | | | | | | | | | | | | We were relying on the info in pevent, but since we have it in perf_evsel, set up by the perf_session routine if read from a perf.data file or by whoever creates the evsels, use it. New 'perf test' entries will use it to parse locally generated events, in a non perf.data centered workflow. As well as use byteswap.h to get per arch optimized swap routines, like other parts of perf (header, perf_evsel__parse_sample, symbol, etc) already do. 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-8tjuxk09mlsfmh7macgkxsip@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Know if byte swap is neededArnaldo Carvalho de Melo2012-09-269-18/+24
| | | | | | | | | | | | | | | | | Instead of passing it around for parsing as an explicit parameter, will help with reading tracepoint fields when not using a perf session or pevent structure, i.e. for non perf.data centered workflows. 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-qa67ikv2sm49cwa7dyjhhp6g@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Allow handling a NULL cpu_map as meaning "all cpus"Arnaldo Carvalho de Melo2012-09-262-6/+17
| | | | | | | | | | | | | | | | | | Or one with cpu_map->map[0] == -1. Reducing the boilerplate in setting up an evlist by nor requiring a cpu_map to be created at all. 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-rnaqn3dtnsfo1wlbbf3fhx00@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Improve tracepoint constructor setupArnaldo Carvalho de Melo2012-09-261-1/+5
| | | | | | | | | | | | | | | | It needs to properly set the sample_type, sample_period and the KVM related perf_event_attr fields. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Fix build failureNamhyung Kim2012-09-251-2/+2
| | | | | | | | | | | | | | | | | | | | The commit 6a6cd11d4e57 ("perf test: Add test for the sched tracepoint format fields") added following build error: CC builtin-test.o builtin-test.c: In function ‘perf_evsel__test_field’: builtin-test.c:1216:6: error: variable ‘ret’ set but not used [-Werror=unused-but-set-variable] builtin-test.c: In function ‘perf_evsel__tp_sched_test’: builtin-test.c:1242:6: error: variable ‘ret’ set but not used [-Werror=unused-but-set-variable] cc1: all warnings being treated as errors make: *** [builtin-test.o] Error 1 Signed-off-by: Namhyung Kim <namhyung@kernel.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/1348539628-3821-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Add test for the sched tracepoint format fieldsArnaldo Carvalho de Melo2012-09-241-0/+86
| | | | | | | | | | | | | | | | So that we make sure the routines that do event format parsing are working on at least two well know scheduler tracepoints. 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-g3rm9b3wtim4djx3z8dkftrj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf evsel: Provide a new constructor for tracepointsArnaldo Carvalho de Melo2012-09-242-6/+87
| | | | | | | | | | | | | | | | | | | | | | | The existing constructor receives a perf_event_attr filled with the event type and the config. To reduce the boilerplate for tracepoints, provide a new constructor, perf_evsel__newtp() that receives the tracepoint name and will open the debugfs file, call into libtraceevent new pevent_parse_format file to fill its ->tp_format member, so that users can then just call perf_evsel__field() to access its fields. 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> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-6du8dl1hz0y5l4cybodye7hn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: bfd.h/libbfd detection fails with recent binutilsMarkus Trippelsdorf2012-09-242-1/+2
| | | | | | | | | | | | | | | | | | | | | With recent binutils I get: perf % make Makefile:668: No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demanglin That happens because bfd.h now contains: I've reopened a bug in the hope that this check will be deleted: http://sourceware.org/bugzilla/show_bug.cgi?id=14243 But in the meantime, the following patch fixes the problem Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Paul Mackerras <paulus@samba.org> Link: http://lkml.kernel.org/r/20120919072902.GA262@x4 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: remove sscanf extension %asIrina Tirdea2012-09-242-17/+37
| | | | | | | | | | | | | | | | | | | | | | | | | perf uses sscanf extension %as to read and allocate a string in the same step. This is a non-standard extension only present in new versions of glibc. Replacing the use of sscanf and %as with strtok_r calls in order to parse a given string into its components. This is needed in Android since bionic does not support %as extension for sscanf. Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung.kim@lge.com> 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/1348173470-4936-1-git-send-email-irina.tirdea@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf header: Remove perf_header__read_featureNamhyung Kim2012-09-242-60/+1
| | | | | | | | | | | | | | | | | Because its only user builtin-kvm::get_cpu_isa() has gone, It can be removed safely. In general, we have the feature information in perf_session_env already, no need to read it again. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Dong Hao <haodong@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1348474503-15070-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kvm: Use perf_session_env for reading cpuidNamhyung Kim2012-09-241-9/+1
| | | | | | | | | | | | | | | | We have processed and saved cpuid information to perf_session_env so reuse it for get_cpu_isa(). Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Dong Hao <haodong@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1348474503-15070-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf header: Remove unused @feat arg from ->process callbackNamhyung Kim2012-09-241-35/+35
| | | | | | | | | | | | | | As the @feat arg is not used anywhere, get rid of it from the signature. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1348474503-15070-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf header: Use pre-processed session env when printingNamhyung Kim2012-09-241-141/+66
| | | | | | | | | | | | | | | | From now on each feature information is processed and saved in perf header so that it can be used for printing. The event desc and branch stack features are not touched since they're not saved. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1348474503-15070-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf header: Add ->process callbacks to most of featuresNamhyung Kim2012-09-241-11/+308
| | | | | | | | | | | | | | | | From now on each feature information is processed and saved in perf header so that it can be used wherever needed. The BRANCH_STACK feature is an exception since it needs nothing to be done. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1348474503-15070-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf header: Add struct perf_session_envNamhyung Kim2012-09-241-0/+24
| | | | | | | | | | | | | | | The struct perf_session_env will preserve environment information at the time of perf record. It can be accessed anytime after parsing a perf.data file if needed. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1348474503-15070-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf timechart: Use zalloc and fix a couple leaksArnaldo Carvalho de Melo2012-09-241-26/+14
| | | | | | | | | | | | | | | | | | | Use zalloc for the malloc+memset open coded sequence. Fix leak on the #ifdef'ed C state handling and when detecting invalid data in p_state_change(). Cc: Arjan van de Ven <arjan@linux.intel.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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf lock: Use perf_evsel__intval and perf_session__set_tracepoints_handlersArnaldo Carvalho de Melo2012-09-241-146/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | Following the model of 'perf sched': . raw_field_value searches first on the common fields, that are unused in this tool . Leave using perf_evsel__intval to the actual handlers, some may not need to incur some of the cost because they may not need all the fields values. . Using perf_session__set_tracepoints_handlers will save all those strcmp to find the right handler at sample processing time, do it just once and get the handler from evsel->handler.func. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kmem: Use perf_evsel__intval and perf_session__set_tracepoints_handlersArnaldo Carvalho de Melo2012-09-241-45/+45
| | | | | | | | | | | | | | | | | | | | | | Following the model of 'perf sched': . raw_field_value searches first on the common fields, that are unused in this tool . Using perf_session__set_tracepoints_handlers will save all those strcmp to find the right handler at sample processing time, do it just once and get the handler from evsel->handler.func. 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-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kvm: Use perf_evsel__intvalArnaldo Carvalho de Melo2012-09-241-63/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | Using plain raw_field_value(evsel->tp_format) will look at the common fields as well, and since this tool doesn't need those, speed it up a bit by looking at just the event specific fields. Also in general use just evsel and sample, just like was done in 'perf sched'. v2: Fixed up test against evsel->name, that contains the subsys name too, by David Ahern. Cc: David Ahern <dsahern@gmail.com> Cc: Dong Hao <haodong@linux.vnet.ibm.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> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com> Link: http://lkml.kernel.org/n/tip-v9x3q9rv4caxtox7wtjpchq5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf kvm: Events analysis toolXiao Guangrong2012-09-216-6/+929
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add 'perf kvm stat' support to analyze kvm vmexit/mmio/ioport smartly Usage: - kvm stat run a command and gather performance counter statistics, it is the alias of perf stat - trace kvm events: perf kvm stat record, or, if other tracepoints are interesting as well, we can append the events like this: perf kvm stat record -e timer:* -a If many guests are running, we can track the specified guest by using -p or --pid, -a is used to track events generated by all guests. - show the result: perf kvm stat report The output example is following: 13005 13059 total 2 guests are running on the host Then, track the guest whose pid is 13059: ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.253 MB perf.data.guest (~11065 samples) ] See the vmexit events: Analyze events for all VCPUs: VM-EXIT Samples Samples% Time% Avg time APIC_ACCESS 460 70.55% 0.01% 22.44us ( +- 1.75% ) HLT 93 14.26% 99.98% 832077.26us ( +- 10.42% ) EXTERNAL_INTERRUPT 64 9.82% 0.00% 35.35us ( +- 14.21% ) PENDING_INTERRUPT 24 3.68% 0.00% 9.29us ( +- 31.39% ) CR_ACCESS 7 1.07% 0.00% 8.12us ( +- 5.76% ) IO_INSTRUCTION 3 0.46% 0.00% 18.00us ( +- 11.79% ) EXCEPTION_NMI 1 0.15% 0.00% 5.83us ( +- -nan% ) Total Samples:652, Total events handled time:77396109.80us. See the mmio events: Analyze events for all VCPUs: MMIO Access Samples Samples% Time% Avg time 0xfee00380:W 387 84.31% 79.28% 8.29us ( +- 3.32% ) 0xfee00300:W 24 5.23% 9.96% 16.79us ( +- 1.97% ) 0xfee00300:R 24 5.23% 7.83% 13.20us ( +- 3.00% ) 0xfee00310:W 24 5.23% 2.93% 4.94us ( +- 3.84% ) Total Samples:459, Total events handled time:4044.59us. See the ioport event: Analyze events for all VCPUs: IO Port Access Samples Samples% Time% Avg time 0xc050:POUT 3 100.00% 100.00% 13.75us ( +- 10.83% ) Total Samples:3, Total events handled time:41.26us. And, --vcpu is used to track the specified vcpu and --key is used to sort the result: Analyze events for VCPU 0: VM-EXIT Samples Samples% Time% Avg time HLT 27 13.85% 99.97% 405790.24us ( +- 12.70% ) EXTERNAL_INTERRUPT 13 6.67% 0.00% 27.94us ( +- 22.26% ) APIC_ACCESS 146 74.87% 0.03% 21.69us ( +- 2.91% ) IO_INSTRUCTION 2 1.03% 0.00% 17.77us ( +- 20.56% ) CR_ACCESS 2 1.03% 0.00% 8.55us ( +- 6.47% ) PENDING_INTERRUPT 5 2.56% 0.00% 6.27us ( +- 3.94% ) Total Samples:195, Total events handled time:10959950.90us. Signed-off-by: Dong Hao <haodong@linux.vnet.ibm.com> Signed-off-by: Runzhen Wang <runzhen@linux.vnet.ibm.com> [ Dong Hao <haodong@linux.vnet.ibm.com> Runzhen Wang <runzhen@linux.vnet.ibm.com>: - rebase it on current acme's tree - fix the compiling-error on i386 ] Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Acked-by: David Ahern <dsahern@gmail.com> Cc: Avi Kivity <avi@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: kvm@vger.kernel.org Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1347870675-31495-4-git-send-email-haodong@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix parallel buildEric Sandeen2012-09-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | Parallel builds of perf were failing for me on a 32p box, with: * new build flags or prefix util/pmu.l:7:23: error: pmu-bison.h: No such file or directory ... make: *** [util/pmu-flex.o] Error 1 make: *** Waiting for unfinished jobs.... This can pretty quickly be seen by adding a sleep in front of the bison calls in tools/perf/Makefile and running make -j4 on a smaller box i.e.: sleep 10; $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c Adding the following dependencies fixes it for me. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/505BD190.40707@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf record: Print event causing perf_event_open() to failStephane Eranian2012-09-201-2/+4
| | | | | | | | | | | | | Got tired of not getting the event that caused the perf_event_open() syscall to fail. So I fixed the error message. This is very useful when monitoring lots of events in a single run. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20120920161945.GA7064@quad Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix a compiling error in util/map.cFeng Tang2012-09-201-3/+2
| | | | | | | | | | | | | | | | | | This patch fix a compile warning taken as error: CC util/map.o cc1: warnings being treated as errors util/map.c: In function ‘map__fprintf_dsoname’: util/map.c:240: error: ‘dsoname’ may be used uninitialized in this function make: *** [util/map.o] Error 1 Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1346053107-11946-3-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf tools: Fix a compiling error in trace-event-perl.c for 32 bits machineFeng Tang2012-09-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | On my x86_32 mahcine, there is a compile error: CC util/scripting-engines/trace-event-perl.o cc1: warnings being treated as errors util/scripting-engines/trace-event-perl.c: In function perl_process_tracepoint: util/scripting-engines/trace-event-perl.c:285: error: format expects type 'int', but argument 2 has type '__u64' make: *** [util/scripting-engines/trace-event-perl.o] Error 1 Fix it by using the "%PRIu64" for __u64. v2: use PRIu64 as suggested by Arnaldo. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120828101730.6b2fd97e@feng-i7 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf stat: Check PMU cpumask fileYan, Zheng2012-09-177-22/+82
| | | | | | | | | | | | | | If user doesn't explicitly specify CPU list, perf-stat only collects events on CPUs listed in the PMU cpumask file. Signed-off-by: "Yah, Zheng" <zheng.z.yan@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1347263631-23175-3-git-send-email-zheng.z.yan@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf report: Add missing perf_hpp__init for pipe-modeNamhyung Kim2012-09-171-1/+3
| | | | | | | | | | | | | | | | | | | The perf_hpp__init() function was only called from setup_browser() so that the pipe-mode missed the initialization thus didn't respond to related options. Fix it. Reported-by: Robert Richter <robert.richter@amd.com> Tested-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-tip-commits@vger.kernel.org Link: http://lkml.kernel.org/r/87txv28spl.fsf_-_@sejong.aot.lge.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf scripts: Export a find_scripts() functionFeng Tang2012-09-172-0/+56
| | | | | | | | | | | | | | So that other perf commands/browser has a way to dig out the available scripts info in system, this is a preparation for the script browser. Signed-off-by: Feng Tang <feng.tang@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1347007349-3102-5-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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