diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2015-11-05 15:40:59 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-12-17 16:29:19 -0300 |
| commit | a56f9390aa9d9b1c782c3dbd5ca2c4245eb265fc (patch) | |
| tree | 051110b92437b32ca580cf20acc4f15e557e8577 /tools/perf/builtin-stat.c | |
| parent | 6edb78a2178fd85d07b1a7fbb3629be56b860224 (diff) | |
perf stat report: Process stat and stat round events
Adding processing of stat and stat round events.
The stat data com in stat events, using generic function
process_stat_round_event to store data under perf_evsel object.
The stat-round events comes each interval or as last event in non
interval mode. The function process_stat_round_event process stored data
for each perf_evsel object and print it out.
Committer note:
After this patch:
$ perf stat record usleep 1
Performance counter stats for 'usleep 1':
0.498381 task-clock (msec) # 0.571 CPUs utilized
2 context-switches # 0.004 M/sec
0 cpu-migrations # 0.000 K/sec
149 page-faults # 0.299 M/sec
1,271,635 cycles # 2.552 GHz
928,712 stalled-cycles-frontend # 73.03% frontend cycles idle
663,286 stalled-cycles-backend # 52.16% backend cycles idle
792,614 instructions # 0.62 insns per cycle
# 1.17 stalled cycles per insn
136,850 branches # 274.589 M/sec
<not counted> branch-misses (0.00%)
0.000873419 seconds time elapsed
$
$ perf stat report
Performance counter stats for '/home/acme/bin/perf stat record usleep 1':
0.498381 task-clock (msec) # 0.571 CPUs utilized
2 context-switches # 0.004 M/sec
0 cpu-migrations # 0.000 K/sec
149 page-faults # 0.299 M/sec
1,271,635 cycles # 2.552 GHz
928,712 stalled-cycles-frontend # 73.03% frontend cycles idle
663,286 stalled-cycles-backend # 52.16% backend cycles idle
792,614 instructions # 0.62 insns per cycle
# 1.17 stalled cycles per insn
136,850 branches # 274.589 M/sec
<not counted> branch-misses (0.00%)
0.000873419 seconds time elapsed
$
Reported-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
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/1446734469-11352-16-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index f9d4e0963ac7..d27d1b921efa 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1628,6 +1628,32 @@ static int __cmd_record(int argc, const char **argv) return argc; } +static int process_stat_round_event(struct perf_tool *tool __maybe_unused, + union perf_event *event, + struct perf_session *session) +{ + struct stat_round_event *round = &event->stat_round; + struct perf_evsel *counter; + struct timespec tsh, *ts = NULL; + const char **argv = session->header.env.cmdline_argv; + int argc = session->header.env.nr_cmdline; + + evlist__for_each(evsel_list, counter) + perf_stat_process_counter(&stat_config, counter); + + if (round->type == PERF_STAT_ROUND_TYPE__FINAL) + update_stats(&walltime_nsecs_stats, round->time); + + if (stat_config.interval && round->time) { + tsh.tv_sec = round->time / NSECS_PER_SEC; + tsh.tv_nsec = round->time % NSECS_PER_SEC; + ts = &tsh; + } + + print_counters(ts, argc, argv); + return 0; +} + static int process_stat_config_event(struct perf_tool *tool __maybe_unused, union perf_event *event, @@ -1713,6 +1739,8 @@ static struct perf_stat perf_stat = { .thread_map = process_thread_map_event, .cpu_map = process_cpu_map_event, .stat_config = process_stat_config_event, + .stat = perf_event__process_stat_event, + .stat_round = process_stat_round_event, }, }; |