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| author | David Ahern <dsahern@gmail.com> | 2011-11-21 10:02:52 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-11-28 11:48:23 -0200 |
| commit | e7984b7bee2fca8f582f5bc2bf1e6c93420a5dd5 (patch) | |
| tree | a6983438f7ec42b8f16f8e2f884fae5dcb8b210e /tools/perf | |
| parent | c8e6672035e84799e6167e933fafedc8e3256973 (diff) | |
| download | op-kernel-dev-e7984b7bee2fca8f582f5bc2bf1e6c93420a5dd5.zip op-kernel-dev-e7984b7bee2fca8f582f5bc2bf1e6c93420a5dd5.tar.gz | |
perf script: Add comm filtering option
Allows collecting events system wide and then pulling out events for a
specific task name(s). e.g,
perf script -c gnome-shell,gnome-terminal
Applies on top of:
https://lkml.org/lkml/2011/11/13/74
v2->v3
- update Documentation
v1->v2
- use comm_list from symbol_conf
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1321894972-24246-1-git-send-email-dsahern@gmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Documentation/perf-script.txt | 5 | ||||
| -rw-r--r-- | tools/perf/builtin-script.c | 12 |
2 files changed, 17 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 3613b0a..7f61eaa 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -188,6 +188,11 @@ OPTIONS CPUs are specified with -: 0-2. Default is to report samples on all CPUs. +-c:: +--comms=:: + Only display events for these comms. CSV that understands + file://filename entries. + -I:: --show-info:: Display extended information about the perf.data file. This adds diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 7731a09..619d6dc 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -441,6 +441,7 @@ static int process_sample_event(struct perf_tool *tool __used, struct perf_evsel *evsel, struct machine *machine) { + struct addr_location al; struct thread *thread = machine__findnew_thread(machine, event->ip.pid); if (thread == NULL) { @@ -460,6 +461,15 @@ static int process_sample_event(struct perf_tool *tool __used, return 0; } + if (perf_event__preprocess_sample(event, machine, &al, sample, 0) < 0) { + pr_err("problem processing %d event, skipping it.\n", + event->header.type); + return -1; + } + + if (al.filtered) + return 0; + if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) return 0; @@ -1086,6 +1096,8 @@ static const struct option options[] = { "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr", parse_output_fields), OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), + OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", + "only display events for these comms"), OPT_BOOLEAN('I', "show-info", &show_full_info, "display extended information from perf.data file"), OPT_END() |
