Question about Dual-Proc power management

Discussion in 'Mac Pro' started by chmilar, Jul 29, 2010.

  1. chmilar macrumors member

    Sep 25, 2003
    I have a question about the Dual-Proc MacPro's power management:

    If you are only running one or two applications, using one or two cores, is the power management smart enough to put one of the processors to sleep, or into a low-power mode?
  2. beto2k7 macrumors 6502

    Jan 6, 2010
    I don't think so but you can do it manually using the processor prefpane included with Xcode tools
  3. Inconsequential macrumors 68000

    Sep 12, 2007
    From what I read, yes it is.

    From memory:

    OS X first turns off the 2nd CPU
    OS X then turns off the HT cores on the 1st CPU
    Then something else happens :p

    Basically, yes the 2nd CPU drops down to as near as dammit 0 when your only using a few % of the horsepower!
  4. strausd macrumors 68030

    Jul 11, 2008
    And with turbo boost it should also crank up the clock speed of the single core to make it run faster.

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