From: Jens Axboe <jens.axboe@oracle.com>
To: "Alan D. Brunelle" <Alan.Brunelle@hp.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: CFQ IO scheduler patch series - AIM7 DBase results on a 16-way IA64
Date: Mon, 30 Apr 2007 14:27:53 +0200 [thread overview]
Message-ID: <20070430122753.GL21015@kernel.dk> (raw)
In-Reply-To: <4635D59C.4050300@hp.com>
On Mon, Apr 30 2007, Alan D. Brunelle wrote:
> The results from a single run of an AIM7 DBase load on a 16-way ia64 box
> (64GB RAM + 144 FC disks) showed a slight regression (~0.5%) by adding
> in this patch. (Graph can be found at
> http://free.linux.hp.com/~adb/cfq/cfq_dbase.png ) It is only a single
> set of runs, on a single platform, but it is something to keep an eye on
> as the regression showed itself across the complete run.
Do you know if this regression is due to worse IO performance, or
increased system CPU usage?
--
Jens Axboe
next prev parent reply other threads:[~2007-04-30 12:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-30 11:40 CFQ IO scheduler patch series - AIM7 DBase results on a 16-way IA64 Alan D. Brunelle
2007-04-30 12:27 ` Jens Axboe [this message]
2007-04-30 13:05 ` Alan D. Brunelle
2007-05-01 12:03 ` Alan D. Brunelle
2007-05-01 12:11 ` Jens Axboe
2007-05-21 12:16 ` Alan D. Brunelle
2007-05-21 12:19 ` Jens Axboe
2007-05-21 15:11 ` Alan D. Brunelle
2007-05-21 17:04 ` Jens Axboe
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