Date: Wed, 3 May 2006 16:34:04 -0300 (ADT) From: "Marc G. Fournier" <scrappy@hub.org> To: Spartak Radchenko <spartak@aif.ru> Cc: freebsd-stable@freebsd.org Subject: Re: Hyperthreading in 6.x ... still frowned upon? Message-ID: <20060503163311.I1147@ganymede.hub.org> In-Reply-To: <20060503191117.GA5646@oberon.aif.ru> References: <20060503184223.GB2198@oberon.aif.ru> <009401c66ee1$8c706170$0202fea9@aus.pervasive.com> <20060503191117.GA5646@oberon.aif.ru>
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On Wed, 3 May 2006, Spartak Radchenko wrote: > On Wed, May 03, 2006 at 01:44:02PM -0500, Larry Rosenman wrote: >> Spartak Radchenko wrote: >>> On Wed, May 03, 2006 at 11:42:18AM -0300, Marc G. Fournier wrote: >>>> >>>> In 4.x, it was a 'shut it off' sort of deal .. my new amd64 don't >>>> appear to have it enabled, but my older i386 server that I just >>>> upgraded to 6.x does: >>> >>> I am not sure I understood your problem correctly... Do you want >>> to enable hyperthreading on amd64? But they have no such thing. >>> Intel only. >> >> you do know that EM64T Xeons *DO* have hyperthreading, and (can) >> run an amd64 kernel? > > Of course. So "amd64" means FreeBSD platform in the original posting, > not hardware? Ok, thanks. It was not evident to me. This is correct ... we have two HP Dual Xeon 64bit servers, both running FreeBSD 6.x/amd64 ... those ones run without an issue, and don't have HyperThreading enabled ... they are slightly older CPUs, so aren't Dual-Core either ... ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664
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