Date: Thu, 17 Nov 2005 17:31:35 +0100 From: guru@Sisis.de To: freebsd-questions@freebsd.org Subject: Re: high CPU activity for interrupts Message-ID: <20051117163135.GA25653@rebelion.Sisis.de> In-Reply-To: <20051114165733.GA48916@slackbox.xs4all.nl> References: <20051114143038.GA21017@rebelion.Sisis.de> <20051114165733.GA48916@slackbox.xs4all.nl>
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El día Monday, November 14, 2005 a las 05:57:33PM +0100, Roland Smith escribió: > On Mon, Nov 14, 2005 at 03:30:38PM +0100, guru@Sisis.de wrote: > > > > Hello, > > > > >From time to time I see an increasing temperature of the CPU of > > my laptop and figured out that this has to do with a high load > > of the CPU for 'interrupts' while the system itself is nearly > > unused (only KDE with a few windows are up): > > > > top(1) shows it like this: > > > > CPU states: 0.8% user, 0.0% nice, 0.4% system, 22.9% interrupt, > 76.0% idle > > > > What could I do to figure out what's going on? > > Run 'vmstat -i'. That'll show you what is generating the interrupts. It seems to be this one: $ vmstat -i interrupt total rate irq0: clk 3007441 99 irq1: atkbd0 35757 1 irq4: sio0 2 0 irq6: fdc0 10 0 irq7: 1 0 stray irq7 1 0 irq8: rtc 3849029 127 irq9: acpi0 2184 0 irq11: cbb1 pcm0++* 13344767 443 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ irq12: psm0 131520 4 irq14: ata0 170184 5 irq15: ata1 77 0 Total 20540973 682 What can I do? matthias -- Matthias Apitz / Sisis Informationssysteme GmbH Gruenwalder Weg 28g / D-82041 Oberhaching Fon: ++49 89 / 61308-351, Fax: -399, Mobile ++49 170 4527211 http://www.sisis.de/
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