VirtualBox causing big peaks in CPU

NoOp glgxg at
Wed May 7 21:59:38 UTC 2008

On 05/07/2008 01:53 PM, Paolo wrote:
> NoOp wrote:
>> For your USB: Are you running the OSE or the PULE? 
> I've installed
> virtualbox_1.6.0-30421_Ubuntu_hardy_i386.deb from the VirtualBox/Sun site (it's 
> not the OSE).
> Thanks. By following this (in fact it contains the same infomation as pp. 
> 143-144 of the VirtualBox 1.6 User Manual) for editing
>    /etc/fstab
> and
>    /etc/init.d/
> USB support is now working fine.


> I am still not sure if the high CPU usage has gone away or not. I think it is 
> still happening (you hear the fan) considerably more than with Ubuntu 7.10.
> It is not to do with memory, I think. There is 2Gb in total, so even giving Win 
> XP 384, as I now doing, leaves Ubuntu with plenty.

I don't have VB running on Gutsy, but can attest to the high cpu even in
1.5.6; monitoring in top (top -d1) I see that VB is going as high as 96%
on occasion. This is on a 2.4Ghz/784MB machine running 1 VM Win2KPro set
for 168MB.

Bug reports are here:
There might be something related, but I currently don't have time to
scan them to check.

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