linux-kernel - Re: HPL Benchmark performance degradation of kernel 2.6.24.3 vs 2.6.23.14

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Date:	Sun, 02 Mar 2008 20:02:56 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Eric Dumazet <dada1@...mosbay.com>
Cc:	Allan Menezes <amenezes007@...patico.ca>,
	linux-kernel@...r.kernel.org
Subject: Re: HPL Benchmark performance degradation of kernel 2.6.24.3 vs
	2.6.23.14


On Sun, 2008-03-02 at 19:48 +0100, Eric Dumazet wrote:

> Examining your .config, I would point out CONFIG_SLUB_DEBUG=y
> You really should disable this expensive option.

CONFIG_SLUB_DEBUG_ON is the expensive one.

> (and possibly use CONFIG_SLAB instead of CONFIG_SLUB)

That is a good thing to test indeed.

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