[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH] permute with 2MB chunk
> We also tested building an HVM guest with the permuted ordering of > pages, versus reverse ordering, versus normal ordering. Only the permuted > ordering showed the problem. We assume that the permute() function has an > unfortunate interaction with the memory allocator in certain HVM guest OSes, > causing poor cache utilisation. It's still very odd that the permutation fn only seems to effect Linux running as a HVM guest and not as a PV guest. I still think there's something we're not quite understanding. Jean: have you definitely verified that building a domain with the permute function does not affect Linux PV guests? Thanks, Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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