why only 1 processor on MacPro for Windows?

Discussion in 'Parallels Desktop for Mac' started by blomasky, Oct 31, 2006.

  1. blomasky

    blomasky

    Messages:
    27
    Just curious. I notice when opening task manager in windows I only see 1 CPU. Does Parallels use more than one cpu when running an o/s? (it seems pretty fast with just one so I figure that with 2 or more it should SCREAM!)

    Bruce
     
  2. VTMac

    VTMac

    Messages:
    340
    A quick search will turn up numerous threads on this topic, if you want more info.
    The short version is the Core DUO chip only supports virtualization using 1 of it's 2 cores. This is not a Parallels issue. It's an Intel issue.
     
  3. ddmerino

    ddmerino

    Messages:
    6
    VTMac,
    Could you clarify something regarding your statement, please.
    The MacPro does not use Core Duo processors. It has Dual Core Xeon processors.
    The MacBook Pro uses Core 2 Duo while the Mac Mini uses Core Duo processors.
    Were you referring to the Dual Core Xeon, Core 2 Duo, Core Duo or to all the dual
    core processors regarding your statement that the Core Duo chip only supports
    virtualization using 1 core.
     
  4. Andrew @ Parallels

    Andrew @ Parallels Parallels Developers

    Messages:
    1,507
    1 Core for OS X, 1 Core for XP

    Actually it is part of Parallels Desktop design. One core is used by Mac OS X and the other core is used by Windows XP - it brings excellent resource management and optimal performance for both systems running simultaneously.
     
  5. barkingsheltie

    barkingsheltie

    Messages:
    6
    Andrew,

    What happens with something like the Mac Pro with two dual cores? Does Parallels still restrict the guest OS to one core?
     

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