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authorNamhyung Kim <namhyung@kernel.org>2015-11-09 14:45:41 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-11-19 13:19:23 -0300
commitf2af008695e0b54a58b76caecd52af7e6c97fb29 (patch)
treec6b9614583fb22f4a5100730d259915f00e320de /tools/perf/util/util.c
parent5e47f8ff406296bd078716d71283796ca5c6544b (diff)
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.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 47b1e36c7ea0..75759aebc7b8 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,
};
/*