linux-kernel - [PATCH 10/10] perf lock: Drop "-a" option from cmd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1273437818-8130-11-git-send-regression-fweisbec@gmail.com>
Date:	Sun,  9 May 2010 22:43:38 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Hitoshi Mitake <mitake@....info.waseda.ac.jp>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jens Axboe <jens.axboe@...cle.com>,
	Jason Baron <jbaron@...hat.com>,
	Xiao Guangrong <xiaoguangrong@...fujitsu.com>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: [PATCH 10/10] perf lock: Drop "-a" option from cmd_record() default arguments set

From: Hitoshi Mitake <mitake@....info.waseda.ac.jp>

This patch drops "-a" from the default arguments passed to
perf record by perf lock.

If a user wants to do a system wide record of lock events,
        perf lock record -a <program> <argument> ...
is enough for this purpose.

This can reduce the size of the perf.data file.

% sudo ./perf lock record whoami
root
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.439 MB perf.data (~19170 samples) ]
% sudo ./perf lock record -a whoami   # with -a option
root
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 48.962 MB perf.data (~2139197 samples) ]

Signed-off-by: Hitoshi Mitake <mitake@....info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Jens Axboe <jens.axboe@...cle.com>
Cc: Jason Baron <jbaron@...hat.com>
Cc: Xiao Guangrong <xiaoguangrong@...fujitsu.com>
LKML-Reference: Message-Id: <1273306229-5216-1-git-send-email-mitake@....info.waseda.ac.jp>
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 tools/perf/builtin-lock.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index e549f45..e18dfdc 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -930,7 +930,6 @@ static const struct option lock_options[] = {
 
 static const char *record_args[] = {
 	"record",
-	"-a",
 	"-R",
 	"-f",
 	"-m", "1024",
-- 
1.6.2.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/