From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@labs.coraid.com>
Date: Thu, 15 Apr 2010 14:44:08 -0400
To: 9fans@9fans.net
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	<434213.82267.qm@web1216.biz.mail.gq1.yahoo.com>
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Subject: Re: [9fans] Recommended emulators/VMs for P9 install
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> main issue is interrupt count does not go below 4000. . .need to dig more into this, probably to compose a mail to the list :), but it does not hurt too much, at least for now.

that shouldn't be happening unless you're doing a lot of disk/network
io.

if you're using 9atom, one would expect ~1100 interrupts/sec since
HZ is set to 1000.  this makes timing work better and doesn't cost much
performance.  in 9atom, /dev/irqalloc has an extra field that is the count
of total interrupts.  i'm guessing that you have a ringing ide interrupt.
but irqalloc should let you know who's the culprit.

- erik