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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] numa: select nodes by cpu affinity
On 08/04/2010 04:38 PM, Keir Fraser wrote: > Changeset 21913 in http://xenbits.xen.org/staging/xen-unstable.hg > > -- Keir > > On 04/08/2010 13:38, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote: > >> Good idea. I will take this and rework it a bit and check it in. >> >> Thanks, >> Keir >> >> On 04/08/2010 13:04, "Andrew Jones" <drjones@xxxxxxxxxx> wrote: > I also considered managing the nodemask as new domain state, as you do, as it may come in useful elsewhere, but my principle of least patch instincts kept me from doing it... I'm not sure about keeping track of the last_alloc_node and then always avoiding it (at least when there's more than 1 node) by checking it last. I liked the way it worked before, favoring the node of the currently running processor, but I don't have any perf numbers to know what would be better. I've attached a patch with a couple minor tweaks. It removes the unnecessary node clearing from an empty initialized nodemask, and also moves a couple of domain_update_node_affinity() calls outside for_each_vcpu loops. Andrew Attachment:
nodemask-tweak.diff _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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