Date: Sun, 11 Jan 2004 13:10:34 -0500 From: Scott W <wegster@mindcore.net> To: David Malone <dwmalone@maths.tcd.ie> Cc: freebsd-current@freebsd.org Subject: Re: `top` reports all CPU states as 0% on i386 Message-ID: <4001919A.3050109@mindcore.net> In-Reply-To: <20040111180412.GA54067@walton.maths.tcd.ie> References: <200401110114.i0B1Eb3d013350@f1.masterplan.org> <40017EDB.4030801@mindcore.net> <20040111180412.GA54067@walton.maths.tcd.ie>
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David Malone wrote: >On Sun, Jan 11, 2004 at 11:50:35AM -0500, Scott W wrote: > > >>Not sure this helps in any immediate fashion, but another data point.... >> >> > >I think this problem is usually caused by one of the clock interrupts >stopping. Checking the output of "vmstat -i" can confirm this - check >for: > >clk irq0 1044322763 100 >rtc irq8 1352668148 129 > >The rate for the first one should 100 (Or possibly HZ, if you have >adjusted HZ). The rate of the second should be about 128, unless >things have got confused. > > David. > > > Things are in fact working correctly on my system at the moment, although I'll certainly check this if I experience the same issue again. Current output of vmstat -i: [wegster@freeb] /home/wegster [1] $ vmstat -i interrupt total rate irq1: atkbd0 10 0 irq3: sio1 2 0 irq4: sio0 2 0 irq6: fdc0 4 0 irq8: rtc 20265654 127 irq9: ohci0 1 0 irq12: psm0 279 0 irq13: npx0 1 0 stray irq13 1 0 irq14: ata0 30 0 irq20: ips0 62763 0 irq27: pcn0 3186839 20 irq0: clk 15829921 99 Total 39345507 248 Scott
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