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My MacBook Pro is generally a fast machine (3.06 Ghz Core 2 Duo, 8GB of RAM, 7200RPM hard drive) but VirtualBox 3.2.6 running Ubuntu 10.04 is just too slow compared to VMWare. What can I fiddle with to improve this? Within Ubuntu, I use Eclipse mostly but even booting and GNOME desktop accessories are slow...

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Why not run Eclipse on OS X itself? – Chealion Aug 7 '10 at 0:10
Chealion, for a number of reasons including: different key mappings, no desire to install all required software off of MacPorts (e.g. Fuse to use sshfs and file:/// based SVN, some Java libraries with native invocations, etc.) keeping productivity/development systems separate, etc.. – Maroloccio Aug 7 '10 at 0:14
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2 Answers

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The performance will become normal if you disable VTx and set it to use only one core of CPU. See the thread at http://forums.virtualbox.org/viewtopic.php?f=8&t=39368

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made a huuuuge difference, thank you – joe larson May 11 '11 at 15:34
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This is more of a work-around than an answer. I was in the same boat, the Oracle-branded version 3.2.6 was bringing my Ubuntu VM to a crawl. So I just deleted 3.2.6 and installed version 3.1.8 and everything was fine. If you're just running Ubuntu I don't think there's much of a difference between 3.1 and 3.2.

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