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| author | Jin Yao <yao.jin@linux.intel.com> | 2020-10-09 10:28:43 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-10-14 13:34:06 -0300 |
| commit | 28904f4dcea1444adea4b51ba0af32d6c7314101 (patch) | |
| tree | fef3a19d2d8e12e8221cccdb28be36ab8b67cebc /tools/perf/util/stream.c | |
| parent | fa79aa6485816b86f37205fd5659616d64f8be7f (diff) | |
| download | lwn-28904f4dcea1444adea4b51ba0af32d6c7314101.tar.gz lwn-28904f4dcea1444adea4b51ba0af32d6c7314101.zip | |
perf streams: Calculate the sum of total streams hits
We have used callchain_node->hit to measure the hot level of one stream.
This patch calculates the sum of hits of total streams.
Thus in next patch, we can use following formula to report hot percent
for one stream.
hot percent = callchain_node->hit / sum of total hits
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20201009022845.13141-6-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/stream.c')
| -rw-r--r-- | tools/perf/util/stream.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/stream.c b/tools/perf/util/stream.c index 0d6a7452320a..47c5956b3378 100644 --- a/tools/perf/util/stream.c +++ b/tools/perf/util/stream.c @@ -121,6 +121,8 @@ static void init_hot_callchain(struct hists *hists, struct evsel_streams *es) update_hot_callchain(he, es); next = rb_next(&he->rb_node); } + + es->streams_hits = callchain_total_hits(hists); } static int evlist__init_callchain_streams(struct evlist *evlist, |