Have you considered tackling this as a larger tuning problem? I don't think
you will get much more from the line you are following.
I would suggest you look at what is delaying the jobs and try to tune. If you
can find I/O avoidance optimizations in that 1hour 15 minutes or maybe reduce
the need for CPU and the elapsed time.
If you can get "them" to take a step back and let you work the problem and not
keep trying to molest WLM "they" might be very pleased with the result.
Have you looked at the critical path using RMF III or better yet application
profile tools like Strobe, Tritune, APA?
Best Regards,
Sam Knutson, GEICO
System z Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
"Think big, act bold, start simple, grow fast..."
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of gsg
Sent: Wednesday, October 29, 2008 9:00 PM
To: IBM-MAIN@BAMA.UA.EDU
Subject: WLM Service Class
Our management has set a goal of 1hour 15 minutes for our batch window to
run. We have been meeting this goal until recently. It appears that we have
been growing. At the request of management, we created a "special" job
class that runs a service class which has an importance of 1, has CPU critical
turned on and also has a velocity of 90%. This is running higher than CICS.
We have started meeting our goal again, but they don't want to see any jobs
running in this special class having any CPU delays. Now for my question.
What is the highest you can set a service class and how do you control how
high it runs? Can it be made to run as high as System? I know that it would
not be wise to do this, but I just need to ask the question. Is there anything
else that can be done to give this service class more priority?
We are not running too many jobs in this special service class.
TIA
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