Date: Mon, 03 Mar 2003 14:28:10 -0500 (EST) From: Trish Lynch <trish@bsdunix.net> To: Petri Helenius <pete@he.iki.fi> Cc: freebsd-current@FreeBSD.ORG Subject: Re: hype(r)threading Message-ID: <20030303142353.C830-100000@femme> In-Reply-To: <0bf901c2e18d$95bbb3e0$932a40c1@PHE>
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On Mon, 3 Mar 2003, Petri Helenius wrote: > > I seem to want to quite the opposite what other people would like to happ= en, > we have a supermicro P4DPR board with two Xeon=B4s. Since lately the kern= el seems to > want to launch the virtual cores regardless of BIOS setting of HyperThrea= ding being > [Disabled]. > > Any ideas how to disable the cores since our workload is does not benefit= from > having more than two cores in a machine. > > Pete > Currently, AFAIK, there is no way to do this. Depending on what you are doing you can increase performance slightly by setting machdep.cpu_idle_hlt=3D1 -Trish -- Trish Lynch=09=09=09=09=09 trish@bsdunix.net Ecartis Core Team =09=09=09 trish@listmistress.org EFNet IRC Operator @ efnet.demon.co.uk=09=09 AilleCat@EFNet EFNet IRC Operator/SysAdmin @ irc.dkom.at Aille_AT@EFNet Key fingerprint =3D 781D 2B47 AA4B FC88 B919 0CD6 26B2 1D62 6FC1 FF16 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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