vmstat & iostat fields

From: Leonard, Roger <rleonard_at_cvty.com>
Date: Wed, 17 Feb 1999 13:46:11 -0500

Hopefully this is 2 for 1 day at tru64-unix-managers_at_ornl.gov:

Question 1
When running vmstat, the last 3 fields are the cpu utilization for user,
system & idle. My question is what constitutes user cpu utilization and
system cpu utilization? I have a 4100 running PeopleSoft that has 0% idle
time, 90% system time and 10% user time. Are the processes running under
the psoft product considered user time or system time? If not considered
system time, then what could be nailing my CPU's from the system?

Question 2
When running ps auxww the 3rd, 4th and 5th fields are %CPU, %MEM and VSZ.
Adding up all the percents of CPU total way more than 100 so how do I
interpret that number? Also is the %MEM field showing the amount of virtual
memory that process is using? Is the VSZ showing the virtual size of the
process?

Any insight would be greatly appreciated.

rleonard_at_cvty.com
Received on Wed Feb 17 1999 - 18:47:16 NZDT

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