[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] New CPU scheduler w/ SMP load balancer
On Fri, May 26, 2006 at 01:57:47PM -0700, Kamble, Nitin A wrote: > I was looking into doing some load balancing (there was none earlier) > to the domain/vcpu scheduling inside the Xen. And I am glad to see your > patch is targeting exactly that. > I believe the credit scheduler also has sizeable impact on the HVM > domain performance. Do you have any performance data for the HVM guests > with your scheduler? The new scheduler is aggressive about moving VCPUs around to keep the entire SMP host system busy. The operation to move a VCPU's context from one CPU to another needs to be reasonably efficient. I didn't try this with an HVM guest. Can you help out with this? I need to look at the code path that moves an HVM VCPU's context between physical CPUs. We may need to optimize that path. Emmanuel. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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