Re: System value QPRCMLTTSK (Processor multi-tasking)

Al,

  Does it have any effect on single processor CPU's?

  -mark

At 08:55 AM 4/6/00 -0400, you wrote:
>At 04:15 PM 04/05/2000 -0700, you wrote:
>
>This system value is not very well documented, but IMHO you should have it 
>set at the IBM default of '1'.
>
>Al
>
>
>>We recently upgraded one of our AS400's from a 620 to a multiprocessor
>>model.  (Model 720, processor feature 207D, v4r4, not partitioned.)  We are
>>now enjoying a very healthy performance boost.  Our QPRCMLTTSK system value
>>is currently set to '0'.
>>
>>MY QUESTIONS:
>>o  Is it a "no-brainer" to set this to '1' before the next scheduled IPL?
>>o  Do you know of any special considerations or things to watch out for?
>>o  Am I likely to notice a performance difference?
>>
>>
>>This is all the Work Management manual says:
>>
>>         QPRCMLTTSK is processor multi-tasking. This system value allows you
>>to turn on and turn off the processor multi-tasking capability. If enabled,
>>more than one set of task data will be resident in each CPU. Some work load
>>may experience increased performance due to caching implications. The
>>possible values for processor multi-tasking are:
>>
>>
>>         '0': Processor multi-tasking is turned off.
>>
>>         '1': Processor multi-tasking is turned on.
>>
>>
>>         On a partitioned system, change this system value from the primary
>>partition only.
>>
>>
>>
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