From: Marek Habersack <grendel@caudium.net>
To: Willy Tarreau <willy@w.ods.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Very high load on P4 machines with 2.4.28
Date: Wed, 5 Jan 2005 00:09:10 +0100 [thread overview]
Message-ID: <20050104230910.GF5592@beowulf.thanes.org> (raw)
In-Reply-To: <20050104220521.GE7048@alpha.home.local>
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On Tue, Jan 04, 2005 at 11:05:21PM +0100, Willy Tarreau scribbled:
> Oh, while I'm at it, are you using hyperthreading, and if so, could you
yes, as I wrote in the mail I've just sent - on one box which does NOT
exhibit the problem... :)
> disable it ? I have seen many cases where it degrades performances
> significantly (eg: highly loaded user space network applications).
We saw it in two cases as well, that's why in general we don't run with HT
enabled (although we do test the boxes with it and if it behaves, we leave
it on).
best regards,
marek
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next prev parent reply other threads:[~2005-01-04 23:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-04 19:56 Very high load on P4 machines with 2.4.28 Marek Habersack
2005-01-04 22:03 ` Willy Tarreau
2005-01-04 23:07 ` Marek Habersack
2005-01-05 5:28 ` Willy Tarreau
2005-01-05 11:32 ` Marek Habersack
2005-01-04 22:05 ` Willy Tarreau
2005-01-04 23:09 ` Marek Habersack [this message]
2005-01-05 9:42 ` Marcelo Tosatti
2005-01-05 17:49 ` Marek Habersack
2005-01-06 18:56 ` Denis Vlasenko
2005-01-04 19:58 Marek Habersack
2005-01-04 22:41 Nicholas Berry
2005-01-04 23:05 ` Jesper Juhl
2005-01-05 0:02 ` Alan Cox
2005-01-05 1:21 ` Con Kolivas
2005-01-05 7:12 ` Anton Blanchard
2005-01-05 11:09 Indrek Kruusa
2005-01-05 14:03 ` Alan Cox
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