From: Matthias Teege <matthias-9fans@mteege.de>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] High interruptload on cpu server
Date: Sun, 23 Nov 2003 18:29:02 +0100 [thread overview]
Message-ID: <86u14v6ljf.fsf@gic.mteege.de> (raw)
In-Reply-To: <1435c4e71bbcd8b425de038c00040356@plan9.ucalgary.ca> (mirtchov@cpsc.ucalgary.ca's message of "Sun, 23 Nov 2003 08:09:54 -0700")
mirtchov@cpsc.ucalgary.ca writes:
> you can use kprof(3) to profile the kernel, usually the interrupt
> routine of the device driver for the device generating the interrupts
> will be one with a higher percentage.
Nice. First "snapshoot" looks like this.
ms % sym
65830 96.5 halt
860 1.2 i8259isr
280 0.4 resrcwait
280 0.4 wbflush
150 0.2 genrandom
150 0.2 addclock0link
120 0.1 syscall
80 0.1 validname
70 0.1 putmmu
60 0.0 newrgrp
Halt?
Matthias
next prev parent reply other threads:[~2003-11-23 17:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-23 13:38 Matthias Teege
2003-11-23 15:09 ` mirtchov
2003-11-23 17:29 ` Matthias Teege [this message]
2003-11-23 17:32 ` David Presotto
2003-11-24 4:56 ` boyd, rounin
2003-11-24 8:27 ` Fco.J.Ballesteros
2003-11-23 17:51 David Presotto
2003-11-25 13:32 ` Matthias Teege
2003-11-25 13:41 ` David Presotto
2003-11-25 15:35 ` Matthias Teege
2003-11-25 15:43 ` mirtchov
2003-11-26 6:56 ` Matthias Teege
2003-11-26 8:11 ` William Josephson
2003-11-26 13:23 ` David Presotto
2003-11-26 14:13 ` mirtchov
2003-11-26 2:52 ` David Presotto
2003-11-26 6:54 ` Matthias Teege
2003-11-26 13:43 ` David Presotto
2003-11-25 16:22 ` Rob Pike
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