On Tuesday 07 September 2010 21:23:29 Avi Kivity wrote: > On 09/07/2010 03:31 PM, Avi Kivity wrote: > > On 09/07/2010 03:04 PM, Avi Kivity wrote: > >> On 09/07/2010 02:27 PM, Avi Kivity wrote: > >>> On 09/07/2010 11:54 AM, Sheng Yang wrote: > >>>> BTW: the bad commit is: c94c3ba901f87115cf574044e7faabfb1d0251fb > >>>> "KVM: Don't > >>>> save/restore MSR_IA32_PERF_STATUS", but I haven't figured out the > >>>> reason yet. > >>> > >>> Confirmed. Strange! > >> > >> It's incredibly slow. Did we disable the cpu cache somehow? Maybe > >> through the page tables? > > > > PAT = 0. Quite impressive! > Patch posted - qemu didn't reset PAT correctly, but this worked before > c94c3ba90 since setting MSR_IA32_PERF_STATUS failed (and qemu didn't > check the error code). Thanks! -- regards Yang, Sheng -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
