linux-kernel - [PATCH 4/4] perf: add scripts for profiling sleep times

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Date:	Thu,  3 Nov 2011 01:59:44 +0300
From:	Andrew Vagin <avagin@...nvz.org>
To:	linux-kernel@...r.kernel.org
Cc:	Arun Sharma <asharma@...com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	avagin@...nvz.org, devel@...nvz.org
Subject: [PATCH 4/4] perf: add scripts for profiling sleep times

E.g.:
 # ./perf script record sched-stat -- -e sched:sched_stat_sleep &
 # ./foo;
 # killall -SIGINT perf
 ./perf script report sched-stat

Signed-off-by: Andrew Vagin <avagin@...nvz.org>
---
 tools/perf/scripts/python/bin/sched-stat-record |    2 ++
 tools/perf/scripts/python/bin/sched-stat-report |    6 ++++++
 2 files changed, 8 insertions(+), 0 deletions(-)
 create mode 100644 tools/perf/scripts/python/bin/sched-stat-record
 create mode 100644 tools/perf/scripts/python/bin/sched-stat-report

diff --git a/tools/perf/scripts/python/bin/sched-stat-record b/tools/perf/scripts/python/bin/sched-stat-record
new file mode 100644
index 0000000..b9873d9
--- /dev/null
+++ b/tools/perf/scripts/python/bin/sched-stat-record
@@ -0,0 +1,2 @@
+#!/bin/bash
+perf record -ag -e sched:sched_switch --filter "prev_state == 1 || prev_state == 2" -e sched:sched_process_exit ${@.../}
diff --git a/tools/perf/scripts/python/bin/sched-stat-report b/tools/perf/scripts/python/bin/sched-stat-report
new file mode 100644
index 0000000..d225a37
--- /dev/null
+++ b/tools/perf/scripts/python/bin/sched-stat-report
@@ -0,0 +1,6 @@
+#!/bin/bash
+# description: profiling sleep times
+# args: -e sched:sched_stat_[smth]
+perf inject -s -i perf.data -o perf.data.d || exit
+perf report -i perf.data.d || exit
+unlink perf.data.d
-- 
1.7.1

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