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authorNamhyung Kim <namhyung@kernel.org>2015-11-09 08:45:41 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-11-19 19:19:23 +0300
commitf2af008695e0b54a58b76caecd52af7e6c97fb29 (patch)
treec6b9614583fb22f4a5100730d259915f00e320de /tools/perf/util/callchain.h
parent5e47f8ff406296bd078716d71283796ca5c6544b (diff)
downloadlinux-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/callchain.h')
-rw-r--r--tools/perf/util/callchain.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index cdb386d9ba02..47bc0c57f764 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -29,7 +29,8 @@
HELP_PAD "print_limit:\tmaximum number of call graph entry (<number>)\n" \
HELP_PAD "order:\t\tcall graph order (caller|callee)\n" \
HELP_PAD "sort_key:\tcall graph sort key (function|address)\n" \
- HELP_PAD "branch:\t\tinclude last branch info to call graph (branch)\n"
+ HELP_PAD "branch:\t\tinclude last branch info to call graph (branch)\n" \
+ HELP_PAD "value:\t\tcall graph value (percent|period|count)\n"
enum perf_call_graph_mode {
CALLCHAIN_NONE,
@@ -81,6 +82,12 @@ enum chain_key {
CCKEY_ADDRESS
};
+enum chain_value {
+ CCVAL_PERCENT,
+ CCVAL_PERIOD,
+ CCVAL_COUNT,
+};
+
struct callchain_param {
bool enabled;
enum perf_call_graph_mode record_mode;
@@ -93,6 +100,7 @@ struct callchain_param {
bool order_set;
enum chain_key key;
bool branch_callstack;
+ enum chain_value value;
};
extern struct callchain_param callchain_param;