Any ideas anyone ? -dulloor _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Ian Pratt
2009-Jul-31 21:42 UTC
RE: [Xen-devel] XEN memory management(NUMA or otherwise) TODOs
> Subject: [Xen-devel] XEN memory management(NUMA or otherwise) TODOs > > Any ideas anyone ?There are a few things that spring to mind: * incremental page migration. If the affinity mask associated with domain changes, it might be nice to incrementally migrate pages as appropriate for the new mask (i.e. striped across the nodes included in the affinity set). * we definitely need to review the striping policy in light of the performance gains to be had using 2MB pages with HAP -- we may already be doing the right thing, but I''m not sure. * option to expose real NUMA information into the guest, hence allocate contiguous memory chunks from the nodes in the affinity set, and then expose this information to guests. Individual VCPUs should be given affinity sets confining them to individual nodes. Best, Ian _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel