linux-kernel - Re: SMP performance degradation with sysbench

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Message-ID: <20070226220401.GA22363@artselect.com>
Date:	Mon, 26 Feb 2007 16:04:01 -0600
From:	Pete Harlan <harlan@...select.com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Rik van Riel <riel@...hat.com>,
	Lorenzo Allegrucci <l_allegrucci@...oo.it>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Suparna Bhattacharya <suparna@...ibm.com>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: SMP performance degradation with sysbench

On Tue, Feb 27, 2007 at 12:36:04AM +1100, Nick Piggin wrote:
> I found a couple of interesting issues so far. Firstly, the MySQL
> version that I'm using (5.0.26-Max) is making lots of calls to

FYI, MySQL fixed some scalability problems in version 5.0.30, as
mentioned here:

http://www.mysqlperformanceblog.com/2007/01/03/innodb-benchmarks/

It may be worth using more recent sources than 5.0.26 if tracking down
scaling problems in MySQL.

--Pete

----------------------------------
Pete Harlan
ArtSelect, Inc.
harlan@...select.com
http://www.artselect.com
ArtSelect is a subsidiary of a21, Inc.
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