Date: Sat, 11 Dec 2004 00:18:06 +0000 From: "Colin J. Raven" <colin@kozy-kabin.nl> To: Lucas Holt <luke@foolishgames.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: [Fwd: HTT/SMP servers instability on 5.3-STABLE] Message-ID: <Pine.NEB.4.61.9.0412110015460.579@kenmore.kozy-kabin.nl> In-Reply-To: <143963B7-4AFE-11D9-B1B3-000A95EFF4CA@foolishgames.com> References: <36661.194.210.13.66.1102680032.squirrel@194.210.13.66> <41B9F042.4040700@raad.tartu.ee> <Pine.NEB.4.61.9.0412101953340.579@kenmore.kozy-kabin.nl> <143963B7-4AFE-11D9-B1B3-000A95EFF4CA@foolishgames.com>
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On Dec 10, Lucas Holt launched this into the bitstream: > >>> >> >> Well thanks for sharing those observations. Until I read what you said I >> *assumed* that there was a performance difference with HTT enabled. The >> specs seem to show that there *is* a theoretical difference, yet clearly >> according to your observations there just isn't any difference of earth >> shaking proportions. >> >> > > > I've got a dual xeon 2.0 ghz workstation. I've tried running with and > without HTT enabled on it. My observations were that it seemed to help > slightly with certain tasks but in general degraded system performance. For > example, if i build a world to upgrade the OS it takes at least 30 seconds > longer with HTT enabled. I tried it multiple times to verify it. I even > tried it with different values for the j flag. (3 4 5 and 6) > > Similarly, if i run it in windows with HTT enabled I noticed that windows was > peppy but it was a disaster during gaming. Of course that makes sense as > most of my games are not designed for multiple cpus. (enemy territory, quake > 3, Doom 3, etc) I also realize i could play some of them in fbsd, except my > radeon 9600 xt isn't supported for 3d acceleration! > > > This is *most* surprising but extremely useful information, many thanks for taking the time to impart first hand experiences.
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