14.11.2014 4:33 пользователь "Peter Ross" <peter.r...@alumni.tu-berlin.de>
написал:
>
> Hi all,
>
> I am running VirtualBox on a new server (a Dell T620).
>
> Inside is Oracle Linux. I run a Java app and it is very slow to start.
Hi,
In order to utilize multiple CPUs inside virtual machine you have to enable
io-apic setting.
> Memory should not be an issue. I have 32 GB and 8 GB for the VM.
>
> The server has 2 Xeon CPUs with 4 core each (hypertthreated so VBox sees
16 CPUs).
>
> I do not see any difference between using 1 CPU or 16 for the VM..
>
> Interestingly all the host CPUs are 60-70% in system calls when I run it
on 16 CPUs, according to top.
>
> I am tempted to experiment with CPU sets, btw.
>
> I wonder whether VirtualBox and multiple CPUs are a good mix at all..
>
> Do you have any recommendations how to speed up my VM and Java?
>
> Thank you
> Peter
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