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| author |   Namhyung Kim <namhyung@kernel.org> | 2016-01-05 12:06:00 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-08 12:37:51 -0300 |
| commit | 42b276a2351517409d55b1202a1fa8b05c0cdc99 (patch) | |
| tree | 8b8a8345d15e4dacf8c7ad3cf928941602ff493f /tools/perf/util/callchain.h | |
| parent | tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/ (diff) | |
| download | linux-dev-42b276a2351517409d55b1202a1fa8b05c0cdc99.tar.xz linux-dev-42b276a2351517409d55b1202a1fa8b05c0cdc99.zip | |
perf top: Decay periods in callchains
It missed to decay periods in callchains when decaying hist entries.
This resulted in more than 100 percent overhead in callchains in the
fractal style output.
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1451963160-17196-1-git-send-email-namhyung@kernel.org
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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index 8ac8f043004c..18dd22269764 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -253,6 +253,7 @@ int callchain_node__fprintf_value(struct callchain_node *node, FILE *fp, u64 total); void free_callchain(struct callchain_root *root); +void decay_callchain(struct callchain_root *root); int callchain_node__make_parent_list(struct callchain_node *node); #endif /* __PERF_CALLCHAIN_H */ |