All of lore.kernel.org
 help / color / mirror / Atom feed
From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>,
	Li Zefan <lizf@cn.fujitsu.com>,
	Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>,
	Peter Zijlstra <peterz@infradead.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 0/5] perf kmem: Add more functions and show more  statistics
Date: Tue, 24 Nov 2009 09:45:00 +0200	[thread overview]
Message-ID: <84144f020911232345j75c93ec6mf1fc426262c14eb0@mail.gmail.com> (raw)
In-Reply-To: <20091124073426.GA21991@elte.hu>

Hi Ingo,

On Tue, Nov 24, 2009 at 9:34 AM, Ingo Molnar <mingo@elte.hu> wrote:
> Certainly we can postpone it, as long as there's rough strategic
> consensus on the way forward. I'd hate to have two overlapping core
> kernel facilities and friction between the groups pursuing them and
> constant distraction from having two targets.

Sure, like I said, I think "kmem perf" is the way forward. The only
reason we did kmemtrace userspace out-of-tree was because there was no
perf (or ftrace!) at the time and there wasn't much interest in
putting userspace tools in the tree.

I hope that counts as a "rough strategic consensus" :-)

WARNING: multiple messages have this Message-ID (diff)
From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>,
	Li Zefan <lizf@cn.fujitsu.com>,
	Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>,
	Peter Zijlstra <peterz@infradead.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics
Date: Tue, 24 Nov 2009 09:45:00 +0200	[thread overview]
Message-ID: <84144f020911232345j75c93ec6mf1fc426262c14eb0@mail.gmail.com> (raw)
In-Reply-To: <20091124073426.GA21991@elte.hu>

Hi Ingo,

On Tue, Nov 24, 2009 at 9:34 AM, Ingo Molnar <mingo@elte.hu> wrote:
> Certainly we can postpone it, as long as there's rough strategic
> consensus on the way forward. I'd hate to have two overlapping core
> kernel facilities and friction between the groups pursuing them and
> constant distraction from having two targets.

Sure, like I said, I think "kmem perf" is the way forward. The only
reason we did kmemtrace userspace out-of-tree was because there was no
perf (or ftrace!) at the time and there wasn't much interest in
putting userspace tools in the tree.

I hope that counts as a "rough strategic consensus" :-)

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

  reply	other threads:[~2009-11-24  7:44 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-24  5:25 [PATCH 0/5] perf kmem: Add more functions and show more statistics Li Zefan
2009-11-24  5:25 ` Li Zefan
2009-11-24  5:25 ` [PATCH 1/5] perf kmem: Add new option to show raw ip Li Zefan
2009-11-24  5:25   ` Li Zefan
2009-11-24 16:54   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:54     ` tip-bot for Li Zefan
2009-11-24  5:26 ` [PATCH 2/5] perf kmem: Default to sort by fragmentation Li Zefan
2009-11-24  5:26   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  5:26 ` [PATCH 3/5] perf kmem: Collect cross node allocation statistics Li Zefan
2009-11-24  5:26   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  5:26 ` [PATCH 4/5] perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites Li Zefan
2009-11-24  5:26   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  5:27 ` [PATCH 5/5] perf kmem: Add help file Li Zefan
2009-11-24  5:27   ` Li Zefan
2009-11-24 16:55   ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-24 16:55     ` tip-bot for Li Zefan
2009-11-24  7:15 ` [PATCH 0/5] perf kmem: Add more functions and show more statistics Pekka Enberg
2009-11-24  7:15   ` Pekka Enberg
2009-11-24  7:34   ` Ingo Molnar
2009-11-24  7:34     ` Ingo Molnar
2009-11-24  7:45     ` Pekka Enberg [this message]
2009-11-24  7:45       ` Pekka Enberg
2009-11-24  7:47       ` Ingo Molnar
2009-11-24  7:47         ` Ingo Molnar
2009-11-24  8:04     ` Li Zefan
2009-11-24  8:04       ` Li Zefan
2009-11-24  8:34       ` Ingo Molnar
2009-11-24  8:34         ` Ingo Molnar
2009-11-24 14:57         ` Arjan van de Ven
2009-11-24 14:57           ` Arjan van de Ven
2009-11-24  7:18 ` Pekka Enberg
2009-11-24  7:18   ` Pekka Enberg
2009-11-24  9:04 ` Ingo Molnar
2009-11-24  9:38   ` Li Zefan
2009-11-24  9:38     ` Li Zefan
2009-11-24 10:07     ` Ingo Molnar
2009-11-24 11:04       ` Li Zefan
2009-11-24 11:04         ` Li Zefan
2009-11-24 20:35         ` Ingo Molnar
2009-11-24 20:35           ` Ingo Molnar
2009-11-24 22:34           ` Ingo Molnar
2009-11-24 22:34             ` Ingo Molnar
2009-11-24 18:49       ` Frederic Weisbecker
2009-11-24 18:49         ` Frederic Weisbecker
2009-11-24 19:38       ` [PATCH] perf: Fix bad software/trace event recursion counting Frederic Weisbecker
2009-11-24 20:36         ` [tip:perf/core] perf_events: " tip-bot for Frederic Weisbecker
2009-11-24 20:48         ` [PATCH] perf: " Peter Zijlstra

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=84144f020911232345j75c93ec6mf1fc426262c14eb0@mail.gmail.com \
    --to=penberg@cs.helsinki.fi \
    --cc=arjan@infradead.org \
    --cc=eduard.munteanu@linux360.ro \
    --cc=fweisbec@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=lizf@cn.fujitsu.com \
    --cc=mingo@elte.hu \
    --cc=peterz@infradead.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.