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perf streams: Calculate the sum of total streams hits

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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>
This commit is contained in:
Jin Yao
2020-10-09 10:28:43 +08:00
committed by Arnaldo Carvalho de Melo
parent fa79aa6485
commit 28904f4dce
4 changed files with 38 additions and 0 deletions
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2
tools/perf/util/stream.c
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@@ -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,