1 |
On 5/31/2011 12:11 PM, Tanstaafl wrote: |
2 |
> On 2011-05-31 1:31 PM, James wrote: |
3 |
>> The only thing I've read online that may be applicable is that there |
4 |
>> have been some issues with kernel panics when you give the guest OS |
5 |
>> more than 1 processor. It would suck badly if SMP didn't work well on |
6 |
>> vbox. |
7 |
> |
8 |
> My understanding is it is a general rule that you never give any VM more |
9 |
> than one processor, regardless of which vm hypervisor you are running... |
10 |
> |
11 |
|
12 |
If SMP in VMs were that much of a problem then EC2 and the rest of the |
13 |
clouds would be useless. I'd go so far as to say if you're not |
14 |
oversubscribing your physical CPUs by handing them out multiple times to |
15 |
your VMs you're leaving half of your infrastructure underutilized. |
16 |
|
17 |
That said vbox has never been completely stable for me in any |
18 |
configuration and I usually reboot my laptop once a week. I am running |
19 |
4.0.8 with a Gentoo guest (2.6.36-r5) using 2 CPUs. I haven't noticed |
20 |
any changes in stability since making the change to SMP last month. |
21 |
However there have been at least two SMP guest fixes in the 4.x version. |
22 |
|
23 |
kashani |