Date: Sun, 28 Oct 2007 12:00:21 +0100 From: Kris Kennaway <kris@FreeBSD.org> To: "P.U.Kruppa" <ulrich@pukruppa.net> Cc: freebsd-amd64@FreeBSD.org Subject: Re: Experiences with RELENG_7 Message-ID: <47246BC5.3010900@FreeBSD.org> In-Reply-To: <20071028114924.G1571@small> References: <20071027202252.GA40377@slackbox.xs4all.nl> <4723CD55.5090307@FreeBSD.org> <20071028000917.GC47576@slackbox.xs4all.nl> <4723DB8F.8060407@FreeBSD.org> <20071028060318.W1571@small> <472462F9.7010308@FreeBSD.org> <20071028114924.G1571@small>
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P.U.Kruppa wrote: > On Sun, 28 Oct 2007, Kris Kennaway wrote: > >> P.U.Kruppa wrote: >>> On Sun, 28 Oct 2007, Kris Kennaway wrote: >>> >>>> Roland Smith wrote: >>>>> On Sun, Oct 28, 2007 at 01:44:21AM +0200, Kris Kennaway wrote: >>>>>> Roland Smith wrote: >>>>>>> Hovewer, sometimes a program seems to hog the CPU for a couple of >>>>>>> seconds (as seen in top(1)) >>>>>> Can you please explain (with supporting paste of command output) >>>>>> what you mean by this? >>>>> >>>>> I'll save some top output next time. But what happened was this; >>>>> all of >>>>> a sudden the mouse pointer started moving erratically, and the music >>>>> playing in audacious started skipping. All other X programs started >>>>> responding erratically as well. It looked like the X server wasn't >>>>> getting any CPU time. >>> I can see that happening during portupgrade on my 7.0-BETA1 FreeBSD >>> 7.0-BETA1 #0: Sat Oct 27 04:15:22 CEST 2007 amd64 UP-machine as well. >>> Situation has been improved by using >>> SCHED_ULE instead of SCHED_4BSD . >> >> Yes, so this is a different problem again. People have reported this >> problem with 4BSD, but I don't think it is understood. Just to >> confirm, since we're discussing ULE here do you see this problem with >> ULE? > Yes, but as I said, ULE works better than 4BSD. OK, so what does "works better" mean? Kris
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