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  • 1.  POWER 7 in POWER 6 mode

    Posted Wed February 02, 2011 10:21 AM

    Originally posted by: JMRoderick


    I'm looking for information on whether or not there is a performance hit involved in running a POWER 7 lpar in POWER 6 mode.

    Anyone?

    Thanks.


  • 2.  Re: POWER 7 in POWER 6 mode

    Posted Wed February 02, 2011 02:06 PM

    Originally posted by: MarkTaylor


    Yes, because you will only be running SMT and not SMT++ ..

    HTH
    Mark Taylor


  • 3.  Re: POWER 7 in POWER 6 mode

    Posted Thu February 03, 2011 03:30 AM

    Originally posted by: JMRoderick


    Thanks for the reply.

    I understand I'm not taking advantage of the 4-way SMT delivered by POWER 7 (when I run the lpar in POWER 6 mode) but that's not quite what I'm asking.

    Am I going to see a performance penalty, compared to a pure POWER 6 lpar, when I run a POWER 7 lpar in POWER 6 mode?

    In other words, all other things being equal (CPU speed & availability/RAM/network/disk), if I ran the same workload on a pure POWER 6 lpar and a POWER 7 lpar running in POWER 6 mode, would I see a performance difference between the two?

    Thanks.


  • 4.  Re: POWER 7 in POWER 6 mode

    Posted Mon April 18, 2011 08:53 AM

    Originally posted by: lewisj35


    Did anyone respond to this inquiry? Can someone please respond?


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