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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] iommu/quirk: disable shared EPT for Sandybridge and earlier processors.
>>> On 03.12.15 at 03:40, <kevin.tian@xxxxxxxxx> wrote: > Just confirmed internally with HW team. On SNB 4KB cache is always > used regardless of 4KB/2MB/1GB mapping. There'd be another reason > for this 40% drop observation... So when they stated that the 4k TLB gets always used, did they at least provide some thoughts on what else might be causing this severe a performance impact? Without them helping we're left guessing... Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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