[Bug 455112] Re: VirtualBox performance is much worse when Intel VT-x is enabled

[William Davis]

michal: How many virtual CPU's do you have for your VM?  Through
experimentation, I've just discovered that I can get good performance
with VT-x enabled if I set the number of CPU's to 1 on my Core 2 Duo
machine (P8700).  I was able to set it to 2 CPU's under Jaunty without a
problem -- but the performance with it set to 1 CPU in Karmic is
excellent, so I don't know if this is a bug or a feature.

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VirtualBox performance is much worse when Intel VT-x is enabled
https://bugs.launchpad.net/bugs/455112
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