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authorJiri Olsa <jolsa@kernel.org>2017-08-24 18:27:36 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2017-08-28 16:44:44 -0300
commit9933183e365f7dd3a79507f1ffb4bcf9433a73ee (patch)
treee77f216c3fd5358d67bb676f5f02bdba80d9b86b /tools/perf
parenta1834fc938344dd3015a1df64ee7f2af70ded147 (diff)
downloadlinux-0-day-9933183e365f7dd3a79507f1ffb4bcf9433a73ee.tar.gz
linux-0-day-9933183e365f7dd3a79507f1ffb4bcf9433a73ee.tar.xz
perf report: Group stat values on global event id
There's no big value on displaying counts for every event ID, which is one per every CPU. Rather than that, displaying the whole sum for the event. $ perf record -c 100000 -e cycles:u -s test $ perf report -T Before: # PID TID cycles:u cycles:u cycles:u cycles:u ... [20 more columns of 'cycles:u'] 3339 3339 0 0 0 0 3340 3340 0 0 0 0 3341 3341 0 0 0 0 3342 3342 0 0 0 0 Now: # PID TID cycles:u 3339 3339 19678 3340 3340 18744 3341 3341 17335 3342 3342 26414 Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170824162737.7813-10-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-report.c2
-rw-r--r--tools/perf/util/values.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 9e4004b08f559..f9dff652dcbdb 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -241,7 +241,7 @@ static int process_read_event(struct perf_tool *tool,
const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
int err = perf_read_values_add_value(&rep->show_threads_values,
event->read.pid, event->read.tid,
- event->read.id,
+ evsel->idx,
name,
event->read.value);
diff --git a/tools/perf/util/values.c b/tools/perf/util/values.c
index 3b56aeaa8cbb5..8a32bb0095e5e 100644
--- a/tools/perf/util/values.c
+++ b/tools/perf/util/values.c
@@ -192,7 +192,7 @@ int perf_read_values_add_value(struct perf_read_values *values,
if (cindex < 0)
return cindex;
- values->value[tindex][cindex] = value;
+ values->value[tindex][cindex] += value;
return 0;
}