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

from [Jan Beulich] [Permanent Link][Original]
To: "Stefano Stabellini" <stefano.stabellini@xxxxxxxxxxxxx>
Subject: [Xen-devel] Re: performance regression from c/s 21647:cfba1560054a
From: "Jan Beulich" <JBeulich@xxxxxxxx>
Date: Fri, 11 Nov 2011 07:53:02 +0000
Cc: Gianluca Guida <glguida@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Tim\(Xen.org\)" <tim@xxxxxxx>, Gianluca Guida <gianluca.guida@xxxxxxxxxx>
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>>> On 10.11.11 at 17:10, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:
> Which leaves utilizing mmu_notifier_release() as long as
> CONFIG_MMU_NOTIFIER is enabled, which fortunately KVM
> selects for us.

Of which I didn't immediately recall that it's per-mm. Making it useless
for this purpose too.

Jan


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