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Date: Sat, 4 Oct 2003 19:05:35 -0500
From: "C. Stephen Gunn" <csg@waterspout.com>
To: "Marc G. Fournier" <scrappy@hub.org>
Message-ID: <20031005000535.GA40750@waterspout.com>
References: <200310021105.10872.john@johnrshannon.com>
	<20031002170952.GF15256@sentex.net> <20031002141921.K25730@ganymede.hub.org>
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cc: Damian Gerow <damian@sentex.net>
cc: hardware@freebsd.org
Subject: Re: Hyperthreading Kernel Configuration - 5.1
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Marc G. Fournier (scrappy@hub.org) likely uttered:

> My understanding is that the speed improvements (or degradation) depend on
> the use of the machine ... for instance, I've heard that a high I/O server
> will be slower with HTT enabled, and, from my experience with one such, it
> is so ... I'm not sure what circumstances would show improvements though

Most likly the other end of the spectrum.  I've seem some transactional
loads that require modest compute (say .2 seconds) that seem to do quite
well on a Hyperthread box.

 - Steve