Date: Fri, 24 Dec 2010 20:57:28 -0800 From: Julian Elischer <julian@freebsd.org> To: Stefan Farfeleder <stefanf@freebsd.org> Cc: mav@freebsd.org, freebsd-current@freebsd.org Subject: Re: eventtimers hiccups Message-ID: <4D1579B8.1070808@freebsd.org> In-Reply-To: <20101224143124.GC2642@mole.fafoe.narf.at> References: <20101224143124.GC2642@mole.fafoe.narf.at>
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On 12/24/10 6:31 AM, Stefan Farfeleder wrote: > Hi, > > since the new eventtimers code was committed, my notebook (Dell > Precision m4400) sometimes hangs for 10-30 seconds, mostly during load. > In these periods I can move the mouse pointer but time (as perceived by > time(1)) seems to be halted. This is accompanied by lots of calcru: > runtime went backwards message, though sometimes they only show up when > shutting down. > > I now set kern.eventtimer.periodic=1 and have not experienced such > freezes since then. But it would be nice if the default settigs would > work. Is there something I could do to help fixing this? > BTW, I'm not using powerd. > I also need to set kern.eventtimer.periodic=1 if I want my kernel to boot under Xen. unfortunately it doesn't fix the problem when it doen't shut down. (this is a Xen VPS from rootbsd.com) > sysctl kern.eventtimer gives this output: > kern.eventtimer.choice: HPET(450) HPET1(440) HPET2(440) HPET3(440) LAPIC(400) i8254(100) RTC(0) > kern.eventtimer.et.LAPIC.flags: 15 > kern.eventtimer.et.LAPIC.frequency: 0 > kern.eventtimer.et.LAPIC.quality: 400 > kern.eventtimer.et.HPET.flags: 3 > kern.eventtimer.et.HPET.frequency: 14318180 > kern.eventtimer.et.HPET.quality: 450 > kern.eventtimer.et.HPET1.flags: 3 > kern.eventtimer.et.HPET1.frequency: 14318180 > kern.eventtimer.et.HPET1.quality: 440 > kern.eventtimer.et.HPET2.flags: 3 > kern.eventtimer.et.HPET2.frequency: 14318180 > kern.eventtimer.et.HPET2.quality: 440 > kern.eventtimer.et.HPET3.flags: 3 > kern.eventtimer.et.HPET3.frequency: 14318180 > kern.eventtimer.et.HPET3.quality: 440 > kern.eventtimer.et.RTC.flags: 17 > kern.eventtimer.et.RTC.frequency: 32768 > kern.eventtimer.et.RTC.quality: 0 > kern.eventtimer.et.i8254.flags: 1 > kern.eventtimer.et.i8254.frequency: 1193182 > kern.eventtimer.et.i8254.quality: 100 > kern.eventtimer.periodic: 1 > kern.eventtimer.timer: HPET > kern.eventtimer.idletick: 0 > kern.eventtimer.singlemul: 2 > > Cheers, > Stefan > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
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