From: Namhyung Kim <namhyung....@lge.com>
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%
Cc: Arun Sharma <asha...@fb.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Signed-off-by: Namhyung Kim <namhy...@kernel.org>
---
tools/perf/util/hist.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 6ec5398de89d..236bc9d98ff2 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -410,8 +410,13 @@ static bool hists__collapse_insert_entry(struct hists
*hists __maybe_unused,
cmp = hist_entry__collapse(iter, he);
if (!cmp) {
- iter->period += he->period;
- iter->nr_events += he->nr_events;
+ iter->period += he->period;
+ iter->period_sys += he->period_sys;
+ iter->period_us += he->period_us;
+ iter->period_guest_sys += he->period_guest_sys;
+ iter->period_guest_us += he->period_guest_us;
+ iter->nr_events += he->nr_events;
+
if (symbol_conf.use_callchain) {
callchain_cursor_reset(&callchain_cursor);
callchain_merge(&callchain_cursor,
--
1.7.11.4
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