Re: [Xen-users] Release 0.8.9 of GPL PV drivers for Windows

[jim burns <jim_burn@xxxxxxxxxxxxx>]

On Tuesday May 06 2008 11:13:36 pm Todd Deshane wrote:
> I think that your experience (allowing Xen to do the scheduling itself is
> most efficient and only try to tweak the scheduling in very special cases
> and/or you really know what you are doing) should be considered
> conventional wisdom.
>
> Can you refresh me on the recommendations of the Xen developers that you
> are referring to?

I was responding to Pasi's comment:

On Tuesday May 06 2008 03:21:29 am Pasi Kärkkäinen wrote:
> I think you should re-test with vcpu=1.
>
> Configure dom0 for 1 vcpu and domU for 1 vcpu and pin the domains to have a
> dedicated core. This way you're not sharing any pcpu's between the domains.
> I think this is the "recommended" setup from xen developers for getting
> maximum performance.
>
> I think the performance will be worse when you have more vcpus in use than
> your actual pcpu count..



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