Date: Tue, 10 Mar 2009 17:28:18 +0100 From: Robert Heron <robert@heron.pl> To: Lucas Holt <luke@foolishgames.com> Cc: freebsd-smp@freebsd.org Subject: Re: only one logical CPU used in Xeon Message-ID: <8CFE3F10-2504-45DB-9ED7-BDF354BC10FF@heron.pl> In-Reply-To: <C51E6234-535E-4FBA-9D09-659763E3279A@foolishgames.com> References: <2E7DD8D9-FABA-4A30-9118-948D26DB26AE@heron.pl> <C51E6234-535E-4FBA-9D09-659763E3279A@foolishgames.com>
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Hyperthreading is enabled in BIOS, but the variable: machdep.hyperthreading_allowed is '0' by default in FreeBSD 6.2R :((( I just changed it now to '1' and all cores in all CPUs started to work :))) Very simple change and so much power more :) Thanks a lot for this hint!! Regards, Robert On Mar 10, 2009, at 3:19 PM, Lucas Holt wrote: > Have you tried the hyperthreading setting? > > machdep.hyperthreading_allowed=1 > (put that in /etc/sysctl.conf) > > On Mar 10, 2009, at 6:40 AM, Robert Heron wrote: > >> Hi, >> >> I have FreeBSD 6.2R running on Intel SE7501HG2 motherboard with two >> Xeon installed. >> System detects 2 CPUs with 2 cores in each of them (total 4 cores) >> but it uses only one core in each Xeon (total 2 of 4 cores are used >> only). >> I see it in the 'top'. I tried the same hardware on FreeBSD 7.1R >> and this OS uses all of the detected cores. >> >> What should I do FreeBSD 6.2R to use all of the available cores? >> I cannot upgrade it to 7.x, must use 6.x >> >> Regards, >> Robert Heron >> >> _______________________________________________ >> freebsd-smp@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-smp >> To unsubscribe, send any mail to "freebsd-smp- >> unsubscribe@freebsd.org" > > > > Lucas Holt > Luke@FoolishGames.com > ________________________________________________________ > MidnightBSD.org (Free OS) > JustJournal.com (Free blogging) > >help
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