Date: Sat, 17 Jul 2010 11:04:44 -0700 (PDT) From: Doug Barton <dougb@FreeBSD.org> To: Rui Paulo <rpaulo@lavabit.com> Cc: freebsd-current@FreeBSD.org Subject: Re: Why is intr taking up so much cpu? Message-ID: <alpine.BSF.2.00.1007171103060.1546@qbhto.arg> In-Reply-To: <A81B337F-5932-44B1-BDB4-D9DD36332A16@lavabit.com> References: <alpine.BSF.2.00.1007170013191.7378@qbhto.arg> <A81B337F-5932-44B1-BDB4-D9DD36332A16@lavabit.com>
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On Sat, 17 Jul 2010, Rui Paulo wrote: > > On 17 Jul 2010, at 08:17, Doug Barton wrote: > >> This is happening after I open a flash video in firefox and watch it for >>> 15 minutes: >> >> root 20 -80 - 0K 160K WAIT 0 3:38 14.08% intr >> >> After this happens, my system goes into a death spiral and I have to shut it down. >> >> vmstat -i >> interrupt total rate >> irq1: atkbd0 10384 0 >> irq9: acpi0 5 0 >> irq14: ata0 153410 7 >> irq15: ata1 58 0 >> irq17: wpi0 534038 27 >> irq20: hpet0 uhci0+ 2496833 129 >> irq22: uhci2 66485 3 >> cpu0:timer 19238037 999 >> irq256: hdac0 189713 9 >> cpu1:timer 19236431 999 >> Total 41925394 2178 >> >> >> Any suggestions? current (r210135), i386 smp. Dell C2D laptop. > > What's vmstat -i before the event happens? Here is the output after a clean boot: interrupt total rate irq1: atkbd0 424 4 irq9: acpi0 2 0 irq14: ata0 3266 30 irq15: ata1 58 0 irq17: wpi0 2012 18 irq20: hpet0 uhci0+ 13763 129 irq22: uhci2 16 0 cpu0:timer 105150 991 irq256: hdac0 10 0 cpu1:timer 103716 978 Total 228417 2154 Thanks for the response, Doug -- Improve the effectiveness of your Internet presence with a domain name makeover! http://SupersetSolutions.com/ Computers are useless. They can only give you answers. -- Pablo Picasso
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