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| author | Namhyung Kim <namhyung@kernel.org> | 2015-11-09 05:45:41 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-11-19 16:19:23 (GMT) |
| commit | f2af008695e0b54a58b76caecd52af7e6c97fb29 (patch) | |
| tree | c6b9614583fb22f4a5100730d259915f00e320de /tools/perf/util/util.c | |
| parent | 5e47f8ff406296bd078716d71283796ca5c6544b (diff) | |
| download | linux-f2af008695e0b54a58b76caecd52af7e6c97fb29.tar.xz | |
perf report: Add callchain value option
Now -g/--call-graph option supports how to display callchain values.
Possible values are 'percent', 'period' and 'count'. The percent is
same as before and it's the default behavior. The period displays the
raw period value rather than the percentage. The count displays the
number of occurrences.
$ perf report --no-children --stdio -g percent
...
39.93% swapper [kernel.vmlinux] [k] intel_idel
|
---intel_idle
cpuidle_enter_state
cpuidle_enter
call_cpuidle
cpu_startup_entry
|
|--28.63%-- start_secondary
|
--11.30%-- rest_init
$ perf report --no-children --show-total-period --stdio -g period
...
39.93% 13018705 swapper [kernel.vmlinux] [k] intel_idel
|
---intel_idle
cpuidle_enter_state
cpuidle_enter
call_cpuidle
cpu_startup_entry
|
|--9334403-- start_secondary
|
--3684302-- rest_init
$ perf report --no-children --show-nr-samples --stdio -g count
...
39.93% 80 swapper [kernel.vmlinux] [k] intel_idel
|
---intel_idle
cpuidle_enter_state
cpuidle_enter
call_cpuidle
cpu_startup_entry
|
|--57-- start_secondary
|
--23-- rest_init
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Brendan Gregg <brendan.d.gregg@gmail.com>
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: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1447047946-1691-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 47b1e36..75759ae 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -21,7 +21,8 @@ struct callchain_param callchain_param = { .mode = CHAIN_GRAPH_ABS, .min_percent = 0.5, .order = ORDER_CALLEE, - .key = CCKEY_FUNCTION + .key = CCKEY_FUNCTION, + .value = CCVAL_PERCENT, }; /* |