Re: WRKACTJOB

[Vern Hamberg <vhamberg@xxxxxxxxxxxxxxxxxxxxxxxxx>]

Ken

Neither WRKUSRJOB or WRKSBSJOB have the performance data that WRKACTJOB 
has. This suggests that a lot more is being done. Unfortunately, WRKACTJOB 
cannot be filtered by user, only job name and/or subsystem, etc. There 
could be a custom command written that takes a subsystem description name, 
then calls WRKACTJOB with that filter.

I'm sure WRKACTJOB is recording times of refresh. I'm not sure that IT is 
actively collecting stats over that time - the system is, but that's going 
on at all times, anyway. Things like CPU seconds are kept in absolute 
values from IPL, e.g., or from job start. The delta needs to be calculated, 
based on times collected. CPU% is not stored anywhere, AFAIK. it is calculated.

I just tried it, sorting by CPU%. If I refresh often, the CPU% for my job 
that is running WRKACTJOB is 6-8%. If I wait a long time in between, the 
CPU% is less than 2% - the CPU time used is spread over a longer elapsed 
time. So I believe that the CPU is being used at the refresh time only. All 
the stats are collected into machine counters continually, not because of 
WRKACTJOB.

Also, if you say REFRESH(*NO) when running it again, the time interval 
includes the time when it was NOT running.

So I believe the intensity of WRKACTJOB occurs when refreshing, restarting, 
or resetting the data, F5, F10, or F13, resp.

A lot of people using this command at the same time will put a strain on 
things, of course.

HTH

Vern

At 09:55 AM 8/26/2003 -0700, you wrote:
> Can any of you provide reasons why it might be a good idea to restrict the
> use of the WRKACTJOB command to Sys Admin and Operator users?
>
> I'm trying to convince our large team of programmers that WRKUSRJOB is a
> better command to use...
>
> Kenneth
>
> ****************************************
> Kenneth E. Graap
> IBM Certified Specialist
> AS/400e Professional System Administrator
> NW Natural (Gas Services)
> keg@xxxxxxxxxxxxx
> Phone: 503-226-4211 x5537
> FAX:    603-849-0591
> ****************************************