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Thread: Poor performance in VirtualBox when Intel-VT active

  1. #21
    Join Date
    Jan 2008
    Location
    Poland/Warsaw
    Beans
    269
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Poor performance in VirtualBox when Intel-VT active

    Quote Originally Posted by HotShotDJ View Post
    With VT-x enabled and only 1 CPU defined, performance is fine.
    The real question is not if performance is fine (I could say that it's fine even with VT-x off...) but whether it's better or worse with VT-x enabled. For me it's worse and that worries me because I thought virtualization is an improvement, not a step back.
    Michał Gołębiowski
    Dell Latitude E6500: P8600 | Intel GMA 4500MHD | 15,4'' 1440x900 LED (matte) | 4GiB DDR2 | 233 GiB HDD 7200 rpm (with Free Fall Sensor).
    Jabber ID: mgol /at/ jabster.pl - let me write in within my profile details, please!

  2. #22
    Join Date
    Oct 2009
    Beans
    4

    Re: Poor performance in VirtualBox when Intel-VT active

    I think i found out the problem.

    First of all, i misunderstand the issue in my before post. The problem is not the performance, the problem is just about the keyboard and the mouse. When click, roll over or press a key, it lags, but the 3D performance is quite well.

    The problem is i think, the host machine has a 32Bit OS, but the guest is 64Bit. I learned that my processor does not support AMD-V, but 64Bit guests require the feature, so you can not disable the AMD-V support. There starts the problem. Now i'm downloading the 32Bit Ubuntu 9.10 and will try. I will share the results here.

  3. #23
    Join Date
    Jan 2008
    Location
    Poland/Warsaw
    Beans
    269
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Poor performance in VirtualBox when Intel-VT active

    @sevketcaba
    This is certainly not my problem. I run 32-bit guest on 64-bit host.
    Michał Gołębiowski
    Dell Latitude E6500: P8600 | Intel GMA 4500MHD | 15,4'' 1440x900 LED (matte) | 4GiB DDR2 | 233 GiB HDD 7200 rpm (with Free Fall Sensor).
    Jabber ID: mgol /at/ jabster.pl - let me write in within my profile details, please!

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