From: Peter Zijlstra <peterz@infradead.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>,
Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>,
Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org, Paul Mackerras <paulus@samba.org>,
Tom Zanussi <tzanussi@gmail.com>,
Steven Rostedt <srostedt@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Greg Kroah-Hartman <gregkh@suse.de>
Subject: Re: [PATCH 00/12] perf lock: New subcommand "perf lock", for analyzing lock statistics
Date: Mon, 01 Feb 2010 10:15:20 +0100 [thread overview]
Message-ID: <1265015720.24455.101.camel@laptop> (raw)
In-Reply-To: <20100131210707.GF5224@nowhere>
On Sun, 2010-01-31 at 22:07 +0100, Frederic Weisbecker wrote:
>
> - We are using the -M option from perf tools which multiplexes every
> event buffers, which means every cpu commit their lock events in
> the same buffer. Couple that with the two above reasons, it's supposed
> to scale at worst.
Why are you doing that? That seems like asking for trouble..
next prev parent reply other threads:[~2010-02-01 9:15 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-22 13:39 [PATCH 00/12] perf lock: New subcommand "perf lock", for analyzing lock statistics Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 01/12] perf tools: Add __data_loc support Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 02/12] perf: Add util/include/linuxhash.h to include hash.h of kernel Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 03/12] lockdep: Add information of file and line where lock inited to struct lockdep_map Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 04/12] lockdep: Add file and line to initialize sequence of spinlock Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 05/12] lockdep: Add file and line to initialize sequence of rwlock Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 06/12] lockdep: Add file and line to initialize sequence of rwsem Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 07/12] lockdep: Add file and line to initialize sequence of rwsem (x86) Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 08/12] lockdep: Add file and line to initialize sequence of mutex Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 09/12] lockdep: Fix the way to initialize class_mutex for information of file and line Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 10/12] perf lock: Enhance information of lock trace events Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 11/12] perf lock: New subcommand "perf lock", for analyzing lock statistics Hitoshi Mitake
2010-01-28 6:51 ` Hitoshi Mitake
2010-01-28 14:28 ` [PATCH] perf: Add util/include/linux/config.h for including generated autoconf.h of kernel Hitoshi Mitake
2010-01-28 14:44 ` Peter Zijlstra
2010-01-30 11:44 ` Hitoshi Mitake
2010-01-28 22:27 ` Paul Mackerras
2010-01-30 11:51 ` Hitoshi Mitake
2010-01-22 13:39 ` [PATCH 12/12] Revert "perf record: Intercept all events" Hitoshi Mitake
2010-01-25 2:23 ` Arnaldo Carvalho de Melo
2010-01-25 14:47 ` Hitoshi Mitake
2010-01-25 14:50 ` Peter Zijlstra
2010-01-25 14:57 ` Arnaldo Carvalho de Melo
2010-01-26 7:17 ` Hitoshi Mitake
2010-01-22 16:42 ` [PATCH 00/12] perf lock: New subcommand "perf lock", for analyzing lock statistics Jason Baron
2010-01-22 16:48 ` Peter Zijlstra
2010-01-22 16:52 ` Peter Zijlstra
2010-01-23 6:57 ` Ingo Molnar
2010-01-25 14:15 ` Hitoshi Mitake
2010-01-25 14:48 ` Peter Zijlstra
2010-01-26 7:04 ` Hitoshi Mitake
2010-01-26 4:26 ` Greg KH
2010-01-29 14:34 ` Jens Axboe
2010-01-30 12:00 ` Hitoshi Mitake
2010-01-31 20:44 ` Jens Axboe
2010-01-31 21:07 ` Frederic Weisbecker
2010-01-31 21:11 ` Jens Axboe
2010-02-01 9:15 ` Peter Zijlstra [this message]
2010-02-01 9:22 ` Ingo Molnar
2010-02-01 17:58 ` Frederic Weisbecker
2010-02-01 13:23 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1265015720.24455.101.camel@laptop \
--to=peterz@infradead.org \
--cc=fweisbec@gmail.com \
--cc=gregkh@suse.de \
--cc=jens.axboe@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=mitake@dcl.info.waseda.ac.jp \
--cc=paulus@samba.org \
--cc=srostedt@redhat.com \
--cc=tglx@linutronix.de \
--cc=tzanussi@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox