Date: Wed, 21 May 2003 10:41:51 -0400 From: Bill Moran <wmoran@potentialtech.com> To: Paul Hamilton <paul@computerwest.com.au> Cc: Freebsd-Questions <freebsd-questions@FreeBSD.ORG> Subject: Re: 'top' showing high interrupt rate Message-ID: <3ECB902F.2000102@potentialtech.com> In-Reply-To: <AGEHIFHGNEMPFNCPLONMOEFPEKAA.paul@compwest.com.au> References: <AGEHIFHGNEMPFNCPLONMOEFPEKAA.paul@compwest.com.au>
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Paul Hamilton wrote: > Hi, > > I noticed that top shows a rather high interrupt rate, usually hovering > around 60%! Here is a sample:- > > last pid: 2879; load averages: 0.34, 0.24, 0.18 > up 1+17:26:56 17:18:10 > 36 processes: 2 running, 33 sleeping, 1 zombie > CPU states: 0.6% user, 0.0% nice, 0.0% system, 59.8% interrupt, 39.6% > idle > Mem: 11M Active, 5072K Inact, 7988K Wired, 3552K Cache, 6480K Buf, 960K Free > Swap: 128M Total, 4608K Used, 123M Free, 3% Inuse <snip> > Anyone have any idea how to troubleshoot further? How can I isolate what is > causing the rather high interrupt rate? Run systat and then type ":vmstat" (without quotes) to get the vmstat screen. The lower right will have interrupts broken down by device ... this should help. -- Bill Moran I'm looking for work: http://www.potentialtech.com/resume-wpm.pdf
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