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Re: [Xen-devel] Fwd: Xen scheduler

On 17 Jun 2006, at 19:36, Ky Srinivasan wrote:

We are currently testing with your patch. Your patch gives dom0 greater
than 75% of the CPU. This is fine if dom0 is allowed to run only I/O
intensive workloads. Is this an implicit assumption here.

Our view has always been that dom0 is primarily a service domain. If that isn't the case then you may want to reduce its guarantee (easily done) but bear in mind that this can have a bad effect on domU I/O performance. Hopefully my patch gives a balance that strongly favours dom0 but not so much that other domains get starved for significant periods.

 -- Keir

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