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[Xen-devel] Re: performance regression from c/s 21647:cfba1560054a
| To: | Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: performance regression from c/s 21647:cfba1560054a |
| From: | Gianluca Guida <glguida@xxxxxxxxx> |
| Date: | Thu, 10 Nov 2011 07:00:48 -0800 |
| Cc: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Tim \(Xen.org\)" <tim@xxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Gianluca Guida <gianluca.guida@xxxxxxxxxx> |
| Delivery-date: | Thu, 10 Nov 2011 07:21:43 -0800 |
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On Thu, Nov 10, 2011 at 6:59 AM, 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)? Good question. In case it does not, just changing the ">l1" check to work only in case we used the hypercall might do the trick. Gianluca -- It was a type of people I did not know, I found them very strange and they did not inspire confidence at all. Later I learned that I had been introduced to electronic engineers. E. W. Dijkstra _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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