launchpad-dev team mailing list archive

[Julian Edwards <julian.edwards@xxxxxxxxxxxxx>]

On Tuesday 25 May 2010 14:46:39 Aaron Bentley wrote:
> On 05/24/2010 07:09 PM, Martin Pool wrote:
> > On 24 May 2010 20:16, Julian Edwards <ed@xxxxxxxxxxxxxxxxxx> wrote:
> >> The reason I stopped doing this is because it makes the tests run very
> >> slowly compared to normal.
> > 
> > Oh, that's another difference - running in a schroot is going to be
> > the same speed as in the host environment.  (Well, perhaps it
> > generates very slightly more memory pressure.)
> 
> I didn't notice any slowdown of the tests from running in a vm.  As long
> as your CPU is virtualized, not emulated, it should be similar speed.

I was using kvm with a CPU that has the virtual extensions.  At the time, it 
took about 4 hours instead of the normal 3h 30m natively.

Maybe it was disk contention?