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From: Ingo Molnar <mingo@elte.hu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>,
	Li Zefan <lizf@cn.fujitsu.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool
Date: Mon, 23 Nov 2009 18:53:30 +0100	[thread overview]
Message-ID: <20091123175330.GA29396@elte.hu> (raw)
In-Reply-To: <1258987585.22249.1036.camel@gandalf.stny.rr.com>


* Steven Rostedt <rostedt@goodmis.org> wrote:

> On Fri, 2009-11-20 at 11:49 +0100, Ingo Molnar wrote:
> > > 
> > > You're right, of course. With kmemtrace-user, I just copied the raw 
> > > trace file from /sys/kernel. I wonder if that's a good enough reason 
> > > to keep kmemtrace bits around?
> > 
> > Not really. If then a light-weight recording app could be made but 
> > i'd rather wait for actual usecases to pop up.
> 
> Hmm, but isn't this an actual use case?

Not really - perf record is pretty lightweight and you'd want perf for 
hands-on stats anyway.

	Ingo

WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@elte.hu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>,
	Li Zefan <lizf@cn.fujitsu.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool
Date: Mon, 23 Nov 2009 18:53:30 +0100	[thread overview]
Message-ID: <20091123175330.GA29396@elte.hu> (raw)
In-Reply-To: <1258987585.22249.1036.camel@gandalf.stny.rr.com>


* Steven Rostedt <rostedt@goodmis.org> wrote:

> On Fri, 2009-11-20 at 11:49 +0100, Ingo Molnar wrote:
> > > 
> > > You're right, of course. With kmemtrace-user, I just copied the raw 
> > > trace file from /sys/kernel. I wonder if that's a good enough reason 
> > > to keep kmemtrace bits around?
> > 
> > Not really. If then a light-weight recording app could be made but 
> > i'd rather wait for actual usecases to pop up.
> 
> Hmm, but isn't this an actual use case?

Not really - perf record is pretty lightweight and you'd want perf for 
hands-on stats anyway.

	Ingo

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  reply	other threads:[~2009-11-23 17:53 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-20  7:53 [RFC][PATCH 1/2] perf: Add 'perf kmem' tool Li Zefan
2009-11-20  7:53 ` Li Zefan
2009-11-20  7:53 ` [PATCH 2/2] tracing: Remove kmemtrace tracer Li Zefan
2009-11-20  7:53   ` Li Zefan
2009-11-20  8:20   ` Pekka Enberg
2009-11-20  8:20     ` Pekka Enberg
2009-11-20  8:24     ` Li Zefan
2009-11-20  8:24       ` Li Zefan
2009-11-20  8:27       ` Pekka Enberg
2009-11-20  8:27         ` Pekka Enberg
2009-11-20  8:31         ` Li Zefan
2009-11-20  8:31           ` Li Zefan
2009-11-20  8:14 ` [RFC][PATCH 1/2] perf: Add 'perf kmem' tool Ingo Molnar
2009-11-20  8:14   ` Ingo Molnar
2009-11-20  8:19   ` Pekka Enberg
2009-11-20  8:19     ` Pekka Enberg
2009-11-20  8:30     ` Ingo Molnar
2009-11-20  8:30       ` Ingo Molnar
2009-11-20  8:47       ` Pekka Enberg
2009-11-20  8:47         ` Pekka Enberg
2009-11-20  8:53         ` Li Zefan
2009-11-20  8:53           ` Li Zefan
2009-11-20  9:03           ` Ingo Molnar
2009-11-20  9:03             ` Ingo Molnar
2009-11-20  9:14             ` Li Zefan
2009-11-20  9:14               ` Li Zefan
2009-11-20 14:42             ` Arnaldo Carvalho de Melo
2009-11-20 14:42               ` Arnaldo Carvalho de Melo
2009-11-20 16:41               ` Ingo Molnar
2009-11-20 16:41                 ` Ingo Molnar
2009-11-20 17:52                 ` Arnaldo Carvalho de Melo
2009-11-20 17:52                   ` Arnaldo Carvalho de Melo
2009-11-23  6:51                   ` Ingo Molnar
2009-11-23  6:51                     ` Ingo Molnar
2009-11-23  7:22                     ` Peter Zijlstra
2009-11-23  7:22                       ` Peter Zijlstra
2009-11-23  7:33                       ` Ingo Molnar
2009-11-23  7:33                         ` Ingo Molnar
2009-11-23 14:37                       ` Arnaldo Carvalho de Melo
2009-11-23 14:37                         ` Arnaldo Carvalho de Melo
2009-11-23 14:32                     ` Arnaldo Carvalho de Melo
2009-11-23 14:32                       ` Arnaldo Carvalho de Melo
2009-11-20  9:01         ` Ingo Molnar
2009-11-20  9:01           ` Ingo Molnar
2009-11-20  9:15           ` Pekka Enberg
2009-11-20  9:15             ` Pekka Enberg
2009-11-20 10:13             ` Ingo Molnar
2009-11-20 10:13               ` Ingo Molnar
2009-11-20 10:31               ` Pekka Enberg
2009-11-20 10:31                 ` Pekka Enberg
2009-11-20 10:49                 ` Ingo Molnar
2009-11-20 10:49                   ` Ingo Molnar
2009-11-23 14:46                   ` Steven Rostedt
2009-11-23 14:46                     ` Steven Rostedt
2009-11-23 17:53                     ` Ingo Molnar [this message]
2009-11-23 17:53                       ` Ingo Molnar
2009-11-20  8:20   ` Li Zefan
2009-11-20  8:20     ` Li Zefan
2009-11-20  8:54 ` [tip:perf/core] " tip-bot for Li Zefan
2009-11-20  8:54   ` tip-bot for Li Zefan
2009-11-20  8:55 ` [RFC][PATCH 1/2] " Ingo Molnar
2009-11-20  8:55   ` Ingo Molnar
2009-11-20  9:11   ` Li Zefan
2009-11-20  9:11     ` Li Zefan

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