VMware VS Parallels SCREENSHOT CPU usage

Discussion in 'Parallels Desktop for Mac' started by websyndicate, Apr 17, 2007.

  1. websyndicate

    websyndicate

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    125
    Look at the difference and yes they both have the same app installed. Maybe parallels has a little less stuff on it but they are dang close and these are fresh installs

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    Last edited: Apr 17, 2007
  2. Stefdar

    Stefdar

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    12
    Number one you are not looking at the correct process my friend, the actual executable of VMware which uses proccessor cycles is called vmware-vmx and it's owned by root, which means that you can see it in Activity Monitor under "All proccesses".
    The one you are seeing is just the VMWare console app which uses no cycles.

    Number two, if you want Parallels to be around 9% when idle, and 2% instead of 10% when paused, go in the preferences of your VM file and set the "input sound device" to "null".
     
    Last edited: Apr 17, 2007
  3. akac

    akac

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    144
    Exactly. vmware-vmx took up a lot more CPU for me than Parallels does. I liked parts of it, but not enough to switch if I ever do.
     
  4. hoju

    hoju

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    27
    I can say from everyday usage that vmware-vmx is far more efficient idle then parallels. Parallels does not appear to get the "idle" concept. It smells like they are doing a lot of polling.
     
  5. pwith

    pwith

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    52
    Parallels seesm to be using a helluva a lot memory in comparison to vmware - 220mb to about 20mb
     
  6. wingdo

    wingdo Kilo Poster

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    Yes it does appear that way. Again, as was mentioned yesterday, the screenshot does not include the actual vmware guest or the overhead used with it. vmware-vmx is a root program and cannot be seen the way websyndicate set up activity monitor.
     
  7. crazibri

    crazibri

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    23
    Yeah you need to change your drop down filter from "My Processes" to "All Processes" which requires a root authentication.

    I realize you're trying to make VMWare look good, but your lack of OSX knowledge makes you lose your credibility.

    I've recently switched from Parallels to VMWare and I'm happy about the enhancements they're making. VMWare has been in the business far to long to not make a good product. I really like that I can use my VMWare VMs in any of their products and that their VM Tools work in Windows and Linux. At this point its personal preference, until one product out-shines the other.
     
  8. Eru Ithildur

    Eru Ithildur

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    1,954
    I agree with that 100%
     
  9. mmischke

    mmischke

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    Nice tip re: the input sound device. Thx! It only dropped me a few percentage points, but every bit counts.
     
  10. ehurtley

    ehurtley

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    Here are my comparisons

    Here are Parallels and VMWare Fusion (the latest of each,) running XP Professional SP2. As you can see, both are at 'idle' inside Windows, and have been so for some time. This assures a more even comparison. Both are configured with 512 MB of RAM.

    The first comparison shows Parallels configured for 'normal use', and VMWare configured to be the same as Parallels (only one processor, 3D acceleration turned off,) while the second shows VMWare configured for 'normal use' (two processors, 3D acceleration on.)

    This is running on a MacBook Pro 2.0 GHz Core Duo with 2 GB of RAM.

    Screen Shot 1, Screen Shot 2.

    As you can see, VMWare uses significantly less processor time when idle when it is configured the same as Parallels. When it is configured with all the extras on, though, it uses the same.
     
  11. VTMac

    VTMac

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    340
    Also worth pointing out in those screen shots that VMWare seems to be using quite a bit more real memory, which seems odd. I guess Parallels delays allocation of the ram until requested?
     
  12. tacit_one

    tacit_one Kilo Poster

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    434
    This is not a fare comparison.
    First of all, you're looking at the wrong process - the actual work is happening in the different process running under root privileges - wich is potentially more dangerous for your system in the case of its crash.
    You need to add the memory and cpu usage of all processes used by the virtualization system together to get the right number.

    Please, analyze this problem with some more detailes and you will see that situation is not that bad if you compare Parallels to the competitors :)

    Anyway, competition is definitely a good thing ;)
     
  13. websyndicate

    websyndicate

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    125
    I want to be fair becasue i still favor parallels more her are more screen shots
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    Last edited: Apr 18, 2007
  14. websyndicate

    websyndicate

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    125
    ............
     
  15. enthios

    enthios

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    VM vs Parallels

    I tried VMWare and have to say it's not ready for primetime. I didn't compare CPU usage, but there was no comparison: under VM, my HDD was going berserk. I think it doesn't handle memory as well as Parallels does. Bottom line, I simply couldn't use it. I keep a large number of programs open on WinXP (Most of OFfice2007, plus stock trading software) and switch back and forth between that and OSX. VMWare was just slow and constantly writing to disk.
     
  16. ehurtley

    ehurtley

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    47
    Oh, and in my comparison, one thing I noticed is that, as websyndicates's screenshot also shows, VMWare uses up more memory; and Windows in the VM takes noticdably longer on VMWare than Parallels.
     
  17. Delphyne

    Delphyne

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    51
    I don't have any metrics, but VMWare seems to have much fewer blocking operations. VMWare may be using more CPU and more Memory. It also takes longer to boot my bootcamp VM than Parallels does. However, while the Bootcamp vm is booting in parallels, my computer is worthless. It is unable to open Applications, clicking already open applications stalls for some time with the spinning beachball of doom. With VMWare, it takes a very long time to launch the VM, but at least the computer responds to other I/O requests while I have to wait.
     
  18. Eru Ithildur

    Eru Ithildur

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    1,954
    Yeah, VMWare is a hog in those screenshots compared to Parallels.

    Parallels really isn't that bad for usage.
     
  19. akac

    akac

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    144
    For me, VMWare launched my Bootcamp VM very quickly - much faster than Parallels. However it felt slow and well...slow.
     
  20. Eru Ithildur

    Eru Ithildur

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    1,954
    From what it sounds like VMWare boots faster and Parallels runs faster... VMWare is BETA and things are finally stable at our office with Parallels so I don't think I'm going to switch.

    Maybe Parallels can take a page out of VMWare's book and get faster booting.
     

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