To HT or not to HT?

From: Jon Fanti (jon.fanti_at_unique.com)
Date: 06/30/04

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    To: fedora-list@redhat.com
Date: Wed, 30 Jun 2004 14:24:07 +0100

    Hi guys,

    We've started buying replacement servers for our aging equipment here (it took a
    while to squeeze the money out of the bean counters!), most of the new equipment is
    coming with HT (Hyper Threading)-enabled Xeon or P4 CPUs. Is it worth using HT
    with FC2? Mostly our servers are running apache and MySQL plus some PHP
    scripts. I can't find any where that says I should/shouldn't enable HT. What's the
    general recommendation? I'm tempted to just turn it off unless I am likely to notice a
    nice big performance gain from leaving it on?

    Thanks,

    Jon. 

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