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Subject: RE: Wrong number of cpus detected/reported
Date: Tue, 10 Jun 2003 20:04:15 -0400
Message-ID: <37885B2630DF0C4CA95EFB47B30985FB0188001A@exchange-1.umflint.edu>
Thread-Topic: Wrong number of cpus detected/reported
Thread-Index: AcMvkruui86MQQpzSoamMQH5DPB+hwAGcYsA
From: "Lauro, John" <jlauro@umflint.edu>
To: "Timothy Miller" <miller@techsource.com>
Cc: <linux-kernel@vger.kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
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What kernels balance the loads properly?  When I did some simple tests
with a dual Xeon 2.4, I couldn't get it Linux to balance properly.
About 30% of the time it would be off balance with two CPU bound
processes, and that is about the statistical rate.  I think that was
with 2.4.20, but might have been 2.4.18.  With 3 processes, one would
always get an unfair advantage compared to the other two.

> -----Original Message-----
> From: Timothy Miller [mailto:miller@techsource.com]
> Sent: Tuesday, June 10, 2003 5:09 PM
> To: David Schwartz
> Cc: xyko_ig@ig.com.br; linux-kernel@vger.kernel.org
> Subject: Re: Wrong number of cpus detected/reported
> 
> But if the kernel doesn't have HT support, then it won't necessarily
> balance loads properly.
> 
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