Performance of RC2 vs. 1970

Discussion in 'Parallels Desktop for Mac' started by thezippy, Feb 13, 2007.

  1. thezippy

    thezippy

    Messages:
    3
    I have Windows Vista set up as a VM on my intel MacBook.

    When I run it using Parallels v. 1970, it seems to run relatively smoothly and semi-quick.

    When I run it under RC2, its like molasses... slow as can be to start up, do any commands, shut down, move between windows, etc, etc. It basically bogs the whole machine down.

    Any thoughts on why there's such a dramatic difference between the two? I've checked and the general settings all seem to be the same.

    Thanks,

    Charlie
     
  2. VTMac

    VTMac

    Messages:
    340
    Are you using coherence? Coherence has a huge performance hit.

    Other than that, RC2 is generally slower and more resource intensive than 1970.
     
  3. non-troppo

    non-troppo

    Messages:
    51
    I don't notice much difference on XP, about 21% vs. 20% constant CPU on a VM with 2 application windows open. Is the hit Vista specific? Even dragging windows doesn't cause much more CPU in coherence mode (though I've disabled showing window contents while dragging in windows which I assume will make a difference).

    What is the performance of 1970 at idle? I assume it is better than 20%? What happens when you pause 1970 (3150 still chews through 12% CPU!)
     
  4. VTMac

    VTMac

    Messages:
    340
    I idle around 9-12%. On 3150, I idle around 20%. With coherence I idle around 30-40%. Hence I don't use 3150.
     

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