Date: Sun, 11 Oct 2009 19:39:12 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Larry Rosenman <ler@lerctr.org> Cc: freebsd-current@freebsd.org Subject: Re: Scheduler weirdness Message-ID: <20091012023912.GA38822@troutmask.apl.washington.edu> In-Reply-To: <fe073255a48a675c0a8ab5bb8c105e61.squirrel@webmail.lerctr.org> References: <6729ad0409e449f8dbda69ecd8feb618.squirrel@webmail.lerctr.org> <20091012014846.GB38325@troutmask.apl.washington.edu> <fe073255a48a675c0a8ab5bb8c105e61.squirrel@webmail.lerctr.org>
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On Sun, Oct 11, 2009 at 08:51:48PM -0500, Larry Rosenman wrote: > > On Sun, October 11, 2009 8:48 pm, Steve Kargl wrote: > > On Sun, Oct 11, 2009 at 05:59:52PM -0500, Larry Rosenman wrote: > >> > >> Ok, running RELENG_8 from Friday (10/9/2009). > >> > >> If I have 4 Folding-at-home processes running (they nice themselves) the > >> system is slow as a dog. > >> > >> If I stop them, it's speedy. > >> > >> This is running SCHED_ULE > >> > >> is this expected? > >> > >> What can I do to help? > >> > > > > How many cpus are available on your system? If you're in an > > over-commit situation with numerical intensive applications, > > you may find 4BSD to be a better option. > 4 cpu's. > So, you have 4 cpus and 4 folding-at-home processes and you're trying to use the system with other apps? Switch to 4BSD. -- Steve
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