HP3000-L Archives

September 2001, Week 3

HP3000-L@RAVEN.UTC.EDU
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Subject:
Performance Issues - ICS
From:
John Clogg <[log in to unmask]>
Reply To:
John Clogg <[log in to unmask]>
Date:
Tue, 18 Sep 2001 11:17:00 -0700
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We are having some performance issues on our 989-650.  We occasionally see
system overhead jump up to a very high percentage of total CPU consumption,
and the majority of that time is ICS.  I have seen ICS overhead as high as
40%, which is an extremely high number.  Since this is related to interrupt
handling, I assume we are seeing a flood of activity from some I/O device.
I have checked system logs for excessive I/O errors and have looked at the
LINKCONTROL statistics for evidence of a network problem, but have found no
smoking guns.  Has anyone experienced a similar problem?  Any suggestions?

TIA,
John Clogg
System Administrator
Coldwater Creek

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