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Date:      Mon, 25 Aug 2003 12:59:43 -0700
From:      "David O'Brien" <obrien@freebsd.org>
To:        current@freebsd.org
Subject:   Re: HTT on current
Message-ID:  <20030825195943.GA64423@dragon.nuxi.com>
In-Reply-To: <3F4A43EA.9090500@tcoip.com.br>
References:  <JCEIKJMCANNPGKFKGLKLOENEDJAA.mikej@trigger.net> <3F4A1CE2.6080806@freebsd.org> <20030825164907.GA17503@dragon.nuxi.com> <3F4A43EA.9090500@tcoip.com.br>

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On Mon, Aug 25, 2003 at 02:14:18PM -0300, Daniel C. Sobral wrote:
> >I've heard this several times and don't doubt it, but it would be nice to
> >know more about the issue.  What type of cases?  What benchmarks have
> >been run showing this?
> 
> Well, I haven't actually seen any case where there was a performance 
> gain instead of degradation.

I've seen MS-Windows DCC apps (not optimized specifically for HT) get
significant speedup from HT.  Unfortnately those are the favored
benchmarks of Tom's Hardware et.al. so it is hard to get a truer sense of
the benefits (or pesimization) of HT.



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