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authorJiri Olsa <jolsa@kernel.org>2015-11-05 15:40:59 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-12-17 16:29:19 -0300
commita56f9390aa9d9b1c782c3dbd5ca2c4245eb265fc (patch)
tree051110b92437b32ca580cf20acc4f15e557e8577 /tools/perf/builtin-stat.c
parent6edb78a2178fd85d07b1a7fbb3629be56b860224 (diff)
downloadlinux-a56f9390aa9d9b1c782c3dbd5ca2c4245eb265fc.tar.gz
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.c28
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,
},
};