linux-kernel - Re: [Bug #10638] sysbench+mysql(oltp, readonly) 30% regression with 2.6.26-rc1

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Message-Id: <1211181005.8292.11.camel@twins>
Date:	Mon, 19 May 2008 09:10:05 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [Bug #10638] sysbench+mysql(oltp, readonly) 30% regression
	with 2.6.26-rc1

On Mon, 2008-05-19 at 14:49 +0800, Zhang, Yanmin wrote:

> I tested it on 8-core stoakley.
> 
> 1) volanoMark
> Comparing with 2.6.26-rc1, 2.6.26-rc3+peter_sched_git_patch result has about 30% improvement, but it still has
> about 27% regression than the one of 2.6.25.
> 
> 2) sysbench+mysql(readonly oltp)
> Comparing with 2.6.26-rc2, 2.6.26-rc3+peter_sched_git_patch result has about 15% improvement, but it still has
> about 15% regression than the one of 2.6.25.

Hmm, so both about halfways. When testing on a quad vmark got all the
way back but sysbench was indeed half way.

Ah, well. I'll just continue poking at this. Thanks!

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