diff options
| 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/callchain.h | |
| parent | fa79aa6485816b86f37205fd5659616d64f8be7f (diff) | |
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/callchain.h')
| -rw-r--r-- | tools/perf/util/callchain.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index ad27fc8c7948..ac5bea9c1eb7 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -13,6 +13,7 @@ struct ip_callchain; struct map; struct perf_sample; struct thread; +struct hists; #define HELP_PAD "\t\t\t\t" @@ -302,4 +303,6 @@ void callchain_param_setup(u64 sample_type); bool callchain_cnode_matched(struct callchain_node *base_cnode, struct callchain_node *pair_cnode); +u64 callchain_total_hits(struct hists *hists); + #endif /* __PERF_CALLCHAIN_H */ |