Messages in this thread | | | Date | Fri, 30 Apr 2010 12:54:00 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH 3/4] KVM MMU: allow shadow page become unsync at creating time |
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On 04/30/2010 12:03 PM, Xiao Guangrong wrote: > Allow new shadow page become unsync when is created, then we no need > write-protect the 'sp->gfn', this idea is from Avi: > > |Another interesting case is to create new shadow pages in the unsync > |state. That can help when the guest starts a short lived process: we > |can avoid write protecting its pagetables completely > >
Any idea how this improves performance? A kernel build has a lot of short lived processes, might see an improvement there.
-- Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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