Date: Sat, 14 Jan 2012 11:02:13 +0100 (CET) From: Marco Beishuizen <mbeis@xs4all.nl> To: Mark Blackman <mark@exonetric.com> Cc: freebsd-questions@freebsd.org Subject: Re: no hyperthreading in FreeBSD 9? Message-ID: <alpine.BSF.2.00.1201141058150.2790@yokozuna.lan> In-Reply-To: <26D6A1AE-292A-4EA0-B7E0-89789C1BCE30@exonetric.com> References: <alpine.BSF.2.00.1201131724570.2982@yokozuna.lan> <26D6A1AE-292A-4EA0-B7E0-89789C1BCE30@exonetric.com>
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On Fri, 13 Jan 2012, the wise Mark Blackman wrote: > On 13 Jan 2012, at 16:30, Marco Beishuizen wrote: > >> Hi, >> >> I just upgraded from 8-STABLE to 9-STABLE on my dual Xeon (nocona). Now I have in my boot messages: >> ... >> root: /etc/rc.d/sysctl: WARNING: sysctl machdep.hlt_logical_cpus does not exist. >> root: /etc/rc.d/sysctl: WARNING: sysctl machdep.hyperthreading_allowed does not exist. >> ... >> >> So isn't hyperthreading not available anymore in FreeBSD 9? > > http://svnweb.freebsd.org/base/release/9.0.0/UPDATING?r1=222852&r2=222853&; > > Seems to imply HT is enabled by default and new sysctls are used to take > logical CPUs offline. > > How many CPUs does your boot message suggest FreeBSD 9 is reporting? Yeah, I just deleted the lines from sysctl.conf and it doesn't seem to make a difference at all (2 cpu's x 2 threads). Sorry, Marco -- Who on earth would eat a charred caterpillar!? No, no, you SINGE 'em! You SINGE 'em and eat 'em!
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