cpu on AIX

From: Henry Poras <hporas_at_etal.uri.edu>
Date: Wed, 09 Oct 2002 09:03:51 -0800
Message-ID: <F001.004E48B2.20021009090351@fatcity.com>

I'm working on an AIX (4.3) box which seems to be CPU bound. vmstat and iostat -t both show idle cpu and iowait at 0%. User and system cpu are about 40/60. While trying to track down the source of this load, I looked at the %cpu (-o pcpu) of the processes. One process, spawned from an import, was using about 30% of the cpu. The sum of all pcpu obtained from ps doesn't break 35-40%. I am assuming that this is user cpu, and that the import process is using 3/4 of the user cpu. Since the import is io intensive, I am guessing it is also using a healthy chunk of the system cpu. Is there any way to track this down? Multiple applications (manned by different teams) run on the same server, and so the more I can irrefutably nail down, the better.

Thanks for the help.

Henry

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Author: Henry Poras
  INET: hporas_at_etal.uri.edu

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