Date: Sun, 25 Mar 2007 01:19:13 +0100 From: Erik Trulsson <ertr1013@student.uu.se> To: alex@schnarff.com Cc: freebsd-questions@freebsd.org Subject: Re: IRQ storm Message-ID: <20070325001913.GA97130@owl.midgard.homeip.net> In-Reply-To: <20070324193543.vfbqbfcwjs484os0@mail.schnarff.com> References: <da7069940703241601i4de83223w6147f54a53005435@mail.gmail.com> <8cb6106e0703241624j1cf617acpe18c6e6e9a1e77cb@mail.gmail.com> <20070324193543.vfbqbfcwjs484os0@mail.schnarff.com>
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On Sat, Mar 24, 2007 at 07:35:43PM -0400, alex@schnarff.com wrote: > >>I've changed motherboard recently (now it is Intel DP965LT) and now I > >>have my PC slowed down considerably. vmstat -i shows a huge amount of > >>interrupts on irq17: atapci0: > > > >Do you have atapicam enabled or being loaded as a module? If so, I > >have the same problem, which is currently being tracked in this PR: > > > >http://www.freebsd.org/cgi/query-pr.cgi?pr=103602 > > > >A workaround, if you don't need/want to burn cds/dvds is to remove > >atapicam or don't load the module at boot time. > > > >Thanks, > >Josh > > OK, I know it's probably bad form to reply to a message with a > question...but I saw this, ran vmstat -i, and found what appears to be > a huge number of interrupts going on: > > alex@tms: /usr/local/www/data-dist/arctic$ vmstat -i > interrupt total rate > irq1: atkbd0 422 0 > irq6: fdc0 10 0 > irq8: rtc 241113447 127 > irq12: psm0 9 0 > irq13: npx0 1 0 > irq14: ata0 46 0 > irq19: atapci1 11758285 6 > irq21: fxp0 16485189 8 > irq22: ahc0 3623514 1 > irq0: clk 188371666 99 > Total 461352589 244 The 'rate' column is the average number of interrupts per second since the system started. None of those look particularly large. In fact they look extremely ordinary and unremarkable in all ways. -- <Insert your favourite quote here.> Erik Trulsson ertr1013@student.uu.se
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