linux-kernel - Re: [PATCH 0/5] perf kmem: Add more functions and show more statistics

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Date:	Tue, 24 Nov 2009 23:34:43 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [PATCH 0/5] perf kmem: Add more functions and show more
 statistics


* Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Li Zefan <lizf@...fujitsu.com> wrote:
> 
> > So I think some new updates on kernel perf_event break.
> 
> yeah, you were right. This commit in latest -tip should fix it:
> 
>  fe61267: perf_events: Fix bad software/trace event recursion counting

i tested perf kmem and it works fine now:

 aldebaran:~> perf kmem

 SUMMARY
 =======
 Total bytes requested: 153166032
 Total bytes allocated: 188544080
 Total bytes wasted on internal fragmentation: 35378048
 Internal fragmentation: 18.763807%
 Cross CPU allocations: 61680/451425

	Ingo
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