On 5/31/2011 12:11 PM, Tanstaafl wrote:
On 2011-05-31 1:31 PM, James wrote:
The only thing I've read online that may be applicable is that there
have been some issues with kernel panics when you give the guest OS
more than 1 processor. It would suck badly if SMP didn't work well on
vbox.
My understanding is it is a general rule that you never give any VM more
than one processor, regardless of which vm hypervisor you are running...
If SMP in VMs were that much of a problem then EC2 and the rest of the
clouds would be useless. I'd go so far as to say if you're not
oversubscribing your physical CPUs by handing them out multiple times to
your VMs you're leaving half of your infrastructure underutilized.
That said vbox has never been completely stable for me in any
configuration and I usually reboot my laptop once a week. I am running
4.0.8 with a Gentoo guest (2.6.36-r5) using 2 CPUs. I haven't noticed
any changes in stability since making the change to SMP last month.
However there have been at least two SMP guest fixes in the 4.x version.
kashani
