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Thread: Slow parallel 6

  1. #1


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    Slow parallel 6
    Hey folks, so here's the issue im having, i installed parallels 6 and windows 7 64 bit, it installed without any problems, but when i run windows 7 like a pc, my mac bogs down really bad, if i open any application it takes a long time to start, and even after i quit windows 7 my mac is really slow, i have to restart it, did i do something wrong? any help or advice would be greatly appreciate it.

  2. #2

    vansmith's Avatar
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    How much RAM do you have and how much of it did you allocate to the virtual machine? You should try to have at least 2GB of RAM for the VM.
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  3. #3


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    my mac has 4gig, i allocated 2 gigs for the VM, im running 2.7ghz I7 processor

  4. #4

    chscag's Avatar
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    Also - make sure you're really quitting Parallels not just shutting down the Windows 7 VM. Lots of new users make that mistake. The VM will not quit on its own, you have to shut it down after quitting Windows 7. I think that may be part of your problem.

  5. #5


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    I don't see parallels open anywhere, i use the quit command to really quit it, unless i'm missing something else, even try the force quit and i don't see parallels there, another thing that is happening and i don't know if is normal or not, my mac gets really hot when i run windows 7.

  6. #6

    vansmith's Avatar
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    It gets hot because you have to use a lot of system resources. Remember, you're running two operating systems at the same time. Just remember to run your MBP on a hard, clean surface to allow for good circulation.

    I don't use Parallels but I know for a fact that the VM, when running, is a separate process from VirtualBox. You can quit VirtualBox while the VM is running and the VM will still keep going. Are both the VM and Parallels closed? If so, open up Activity Monitor (/Applications/Utilities) and take a look to see what's using up your resources (both CPU and RAM). If you'd like clarification on what you see, you're more than welcome to post a screenshot of AM open so we can help you out.
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  7. #7


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    http://www.flickr.com/photos/62199663@N00/5590106117/
    sorry I'm not sure if this works.

  8. #8

    cwa107's Avatar
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    Simply put, you need more RAM. With the Core i7, your Mac will use about 1.5GB just to boot. So, assuming you're doing nothing on the Mac and you've allocated 2GB to the VM, you've got just a paltry 512MB in reserve. You Mac will start digging into virtual memory, and that's when things start to bog down - both on the VM and on the Mac.

    I ran into almost the exact same issue. Added 8GB to my MacBook Pro and now the two run comfortably together.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  9. #9

    vansmith's Avatar
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    In case you weren't aware, you've got Parallels open there (not sure if you've opened it since). CPU usage looks normal. If you click on System Memory on the bottom, what values do you have for Free, Wired, Active and Inactive?

    Quote Originally Posted by cwa107 View Post
    With the Core i7, your Mac will use about 1.5GB just to boot.
    Really? That's quite a bit of RAM allocation out of the gates.
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  10. #10

    cwa107's Avatar
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    Quote Originally Posted by vansmith View Post
    Really? That's quite a bit of RAM allocation out of the gates.
    Sure is. A disgusting amount, actually. I'm guessing it has something to do with the 4 physical and 4 virtual cores afforded by the i7.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  11. #11


    Member Since
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    i had parallels open there, i closed it and ran AM again, with all processes and i see something called _windowserver is that part of parallels or of OSX? i quit the process to see what it did, it reloaded my desktop.

  12. #12

    MontyMo's Avatar
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    Specs:
    MacBook Pro 2.3GHz 16GB RAM 1TB SSD
    I just ordered RAM for my MBP. I will be bringing it up to 8gig.
    I am hoping to run SolidWorks. Right now I have 4gig, Autocad and Office run good. SW is a pig though. I am trying to avoid Bootcamp. I just to not want to reboot.
    Monty
    15" MacBook Pro

  13. #13

    vansmith's Avatar
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    The i7 in the 13" (the only one with a 2.7) is a dual core i7. I have a C2D and don't experience anywhere near that kind of allocation. Now, I realize that my C2D is about three years old but do the i7s really need that much more RAM? This is truly astounding.
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  14. #14


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    Screen shot 2011-04-04 at 5.09.51 PM | Flickr - Photo Sharing!
    here's another screenshot without parallels running anywhere, so what is that windowserver all about?

  15. #15

    MontyMo's Avatar
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    Quote Originally Posted by vansmith View Post
    The i7 in the 13" (the only one with a 2.7) is a dual core i7. I have a C2D and don't experience anywhere near that kind of allocation. Now, I realize that my C2D is about three years old but do the i7s really need that much more RAM? This is truly astounding.
    I don't think the i7s need "that much ram" is one stays in the host OS. 4gig is more than enough for me without Parallels. Once I start Parallels, start Win7 and start SolidWorks, that all changes. I plan on giving Win7 6gig and at least 2 of the i7 cores.

    SolidWorks (SW) is a 3D modeling program. THe bigger the assemblies the more ram SW needs. As I said, it is a resource hog.

    SolidWorks
    15" MacBook Pro

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