linux-kernel - Re: [PATCH] SLUB use cmpxchg

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Message-ID: <20070904200242.GB8157@Krystal>
Date:	Tue, 4 Sep 2007 16:02:42 -0400
From:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
To:	Christoph Lameter <clameter@....com>
Cc:	Peter Zijlstra <peterz@...radead.org>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, mingo@...hat.com,
	linux-ia64@...r.kernel.org
Subject: Re: [PATCH] SLUB use cmpxchg_local

* Christoph Lameter (clameter@....com) wrote:
> Measurements on IA64 slub w/per cpu vs slub w/per cpu/cmpxchg_local 
> emulation. Results are not good:
> 

Hi Christoph,

I tried to come up with a patch set implementing the basics of a new
critical section: local_enter(flags) and local_exit(flags).

Can you try those on ia64 and tell me if the results are better ?

See the 2 next posts...

Mathieu
-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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