Date: Wed, 11 Mar 2009 00:52:12 +0100 From: Michal Varga <varga.michal@gmail.com> To: Timothy Brown <stimbrown@fastmail.com.au> Cc: freebsd-stable@freebsd.org Subject: Re: SCHED_ULE + SMP Phenom freeze [SOLVED] Message-ID: <3f1fd1ea0903101652v30984572kfa1f2d3057313359@mail.gmail.com>
next in thread | raw e-mail | index | archive | help
Just a quick success report - kern/120138 does indeed solve the Phenom X3 SCHED_ULE problem. Attached patch against recent -STABLE in case someone else runs into it in the near future: --- sys/kern/sched_ule.c.orig 2008-12-08 05:07:30.000000000 +0100 +++ sys/kern/sched_ule.c 2009-03-11 00:09:43.000000000 +0100 @@ -1399,7 +1399,7 @@ * prevents excess thrashing on large machines and excess idle on * smaller machines. */ - steal_thresh = min(ffs(mp_ncpus) - 1, 4); + steal_thresh = min(fls(mp_ncpus) - 1, 4); affinity = SCHED_AFFINITY_DEFAULT; #endif }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3f1fd1ea0903101652v30984572kfa1f2d3057313359>