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  • 1.  P7 795 Run Queue Size Question

    Posted Tue July 02, 2013 02:58 PM

    Originally posted by: RFS


    I have a P7 795 (SMT-4)  LPAR with 1.5 entitled CPUs and 8 virtual CPUs.  I create daily NMON files with 1 minute snapshots.

    During my peak busy period there are at most 3 physical CPU units used.  Generally, during steady state there are 1.8  physical CPU units used on average.

    However, I noticed the RunQueue is continually reporting an averaage value of 4.

    Why is my RunQueue always occupied when I have 8 virtual CPUs?


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  • 2.  Re: P7 795 Run Queue Size Question

    Posted Mon July 08, 2013 09:23 AM

    Originally posted by: enmanasu


    Hi,

    Is there lot of i/o happening ...? 

     

    shan


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  • 3.  Re: P7 795 Run Queue Size Question

    Posted Mon July 08, 2013 02:00 PM
      |   view attached

    Originally posted by: RFS


    I am seeing an average < 2,000 IO/s when the run queue is at the highest.

    See attached graph.


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