From: Dave Hansen <haveblue@us.ibm.com>
To: "Bond, Andrew" <Andrew.Bond@hp.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: TPC-C benchmark used standard RH kernel
Date: Thu, 19 Sep 2002 14:48:59 -0700 [thread overview]
Message-ID: <3D8A464B.20209@us.ibm.com> (raw)
In-Reply-To: 45B36A38D959B44CB032DA427A6E106402D09E45@cceexc18.americas.cpqcorp.net
Bond, Andrew wrote:
> Don't have any data yet on 8-ways. Our focus for the cluster was
> 4-ways because those are what HP uses for most Oracle RAC
> configurations. We had done some testing last year that showed
> very bad scaling from 4 to 8 cpus (only around 10% gain), but that
> was in the days of 2.4.5. The kernel has come a long way from
> then, but like you said there is more work to do in the 8-way
> arena.
>
> Are the 8-way's you are talking about 8 full processors, or 4 with
> Hyperthreading?
The machines that I was talking about are normal 8 full processors.
They're only PIII's, so we don't even have the option.
--
Dave Hansen
haveblue@us.ibm.com
next prev parent reply other threads:[~2002-09-19 21:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-19 21:18 TPC-C benchmark used standard RH kernel Bond, Andrew
2002-09-19 21:48 ` Dave Hansen [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-09-20 17:43 Bond, Andrew
2002-09-19 19:27 Bond, Andrew
2002-09-19 20:40 ` Dave Hansen
2002-09-20 17:20 ` Mike Anderson
2002-09-20 17:31 ` Jens Axboe
2002-09-20 18:05 ` Mike Anderson
2002-09-20 20:56 ` William Lee Irwin III
2002-09-20 22:07 ` Martin J. Bligh
2002-09-19 19:15 Bond, Andrew
2002-09-19 17:15 Bond, Andrew
2002-09-19 18:14 ` Dave Hansen
2002-09-19 19:05 ` Martin J. Bligh
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