linux-kernel - Re: AIM7 40% regression with 2.6.26-rc1

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Message-Id: <20080507234824.f097f96d.akpm@linux-foundation.org>
Date:	Wed, 7 May 2008 23:48:24 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Matthew Wilcox <matthew@....cx>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@....linux.org.uk>
Subject: Re: AIM7 40% regression with 2.6.26-rc1

On Thu, 8 May 2008 08:43:40 +0200 Ingo Molnar <mingo@...e.hu> wrote:

> great! Yanmin, could you please also check the other patch i sent (also 
> attached below), does it solve the regression similarly?
> 
> 	Ingo
> 
> ---
>  lib/kernel_lock.c |    9 ++++++---

but but but.  Some other users of down() have presumably also regressed.  We just
have't found the workload to demonstrate that yet.

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