[phobos] auto-tester update

[Walter Bright]

Brad Roberts wrote:
> On 2/20/2011 5:25 PM, David Simcha wrote:
>   
>> What's wrong with virtualization as a solution to the one-box-per-platform problem?  Just use your favorite OS as your
>> host, get a ton of RAM, and run all the rest in VMs.
>>     
>
> It's a solution, but not a great one.  The build runs are already cpu bound, so diving up the cpu's just means
> everything goes slower.
>
>   

My experience with virtual boxes is they get wiped out every time you do 
an update on the host. Extremely annoying. I use a separate box per OS. 
Something to do with the old machines around here :-)