[Xen-devel] Re: performance regression from c/s 21647:cfba1560054a

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Thu, 10 Nov 2011, Jan Beulich wrote:
> >>> On 10.11.11 at 15:59, Stefano Stabellini 
> >>> <stefano.stabellini@xxxxxxxxxxxxx>
> wrote:
> > On Thu, 10 Nov 2011, Jan Beulich wrote:
> >> It's SLE11 SP1 guests that suffered a regression after a maintenance
> >> update (originally shipped with 4.0.0, while that patch got backported
> >> later into 4.0.x).
> > 
> > Is SLES11 SP1 using HVMOP_pagetable_dying (see
> > arch/x86/xen/mmu.c:xen_hvm_init_mmu_ops)?
> 
> No, it's not.
 
well, it should, not to fix this problem but because it is a significant
performance improvement when running on shadow

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