linux-kernel - [PATCH 20/20] perf report: Add --percent-type option

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Date:   Sat,  4 Aug 2018 15:05:21 +0200
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Stephane Eranian <eranian@...gle.com>
Subject: [PATCH 20/20] perf report: Add --percent-type option

Set annotation percent type from following choices:
  global-period, local-period, global-hits, local-hits

With following report option setup the percent type will be
passed to annotation browser:

  $ perf report --percent-type period-local

The local/global keywords set if the percentage is computed
in the scope of the function (local) or the whole data (global).
The period/hits keywords set the base the percentage is computed
on - the samples period or the number of samples (hits).

Link: http://lkml.kernel.org/n/tip-ahnswy1p9rnjlkudhl2ig3gc@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/Documentation/perf-report.txt | 9 +++++++++
 tools/perf/builtin-report.c              | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 917e36fde6d8..474a4941f65d 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -477,6 +477,15 @@ include::itrace.txt[]
 	Display monitored tasks stored in perf data. Displaying pid/tid/ppid
 	plus the command string aligned to distinguish parent and child tasks.
 
+--percent-type::
+	Set annotation percent type from following choices:
+	  global-period, local-period, global-hits, local-hits
+
+	The local/global keywords set if the percentage is computed
+	in the scope of the function (local) or the whole data (global).
+	The period/hits keywords set the base the percentage is computed
+	on - the samples period or the number of samples (hits).
+
 include::callchain-overhead-calculation.txt[]
 
 SEE ALSO
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 02f7a3c27761..143542ffac20 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1124,6 +1124,9 @@ int cmd_report(int argc, const char **argv)
 		   "Time span of interest (start,stop)"),
 	OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
 		    "Show inline function"),
+	OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
+		     "Set percent type local/global-period/hits",
+		     annotate_parse_percent_type),
 	OPT_END()
 	};
 	struct perf_data data = {
-- 
2.17.1