From: Cliff White <cliffw@osdl.org>
To: linux-kernel@vger.kernel.org
Subject: 2.4.18 - iostat problem with DAC960
Date: Thu, 24 Oct 2002 14:15:42 -0700 [thread overview]
Message-ID: <200210242115.g9OLFgm01694@mail.osdl.org> (raw)
We are running some benchmarks with raw disk connected to a DAC960
controller. We are having issues with getting proper stats from iostat.
We've tried the latest version we could find ( sysstat version 4.0.6 )
In normal use, we get bizzare numbers, like this:
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
/dev/rd/c0d0
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
0.00 42933903.02 0.00 0.00 100.00
Looking at /proc/partitions, we are also confused, since we see 0 for wio and
rio (and we just did a big dd ) :
[root@dev8-004 root]# cat /proc/partitions | grep c0d0
major minor #blocks name rio rmerge rsect ruse wio wmerge wsect
wuse running use aveq
48 0 107504640 rd/c0d0 0 11734288 105255266 0 0 12286553
104803536 0 2232980 36066697 37688171
Any suggestions?
cliffw
reply other threads:[~2002-10-24 21:09 UTC|newest]
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