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Operating Systems AIX How to measure waiting time in run queue? Post 302803085 by MichaelFelt on Monday 6th of May 2013 02:41:23 AM
Old 05-06-2013
This also give me more to think about.

AIX 6.1 - which TL, how recently patched?
"Applications" - level and patch levels

Quote:
We are investigating divergence between real CPU consumption versus 'sap + rac oracle + gpfs' benchmarks
How are you defining real CPU consumption?

Also,
Is the a shared, or dedicated processor partition?

If shared: how much entitlement; how many VP; how many active threads (normally); what is overal system utilization; how many activated processors. Partition utilization using the command
Code:
# lparstat 6 10 # simple command to review processor utilization for 60 seconds

please only outputs during "stress". "Idle" may also be presented, but only as a comparision.

And, what also helps - a ballpark figure of what you expected to see compared to what you are seeing.

Ah yes, almost forgot: Power7 Model and Firmware level.
 

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atq(1)							      General Commands Manual							    atq(1)

NAME
atq - Prints the queue of jobs waiting to be run SYNOPSIS
atq [-c | -n] [-q queuename] [user...] The atq command prints the queue of jobs waiting to be run at a later date. These jobs were created with the at command. OPTIONS
Sorts the queue by the time that the at command was issued. Prints only the number of files currently in the queue. Specifies the queue you want to use. DESCRIPTION
With no options, the queue is sorted in the order that the jobs are to be executed. When a privileged user invokes the atq command without specifying a username, the entire queue is displayed; if a username is specified, only those jobs belonging to the specified user are displayed. EXAMPLES
In order to look at the queue created by the at command, enter: atq If there are jobs in the queue, a message similar to the following is displayed: root.62169200.a Tue Sep 12 11:00:00 1990 The extension specifies an at job. FILES
Main cron directory. List of allowed users. List of denied users. Spool area. Queue description file for at, batch, and cron. SEE ALSO
Commands: at(1), atrm(1), cron(8) Files: queuedefs(4) atq(1)
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