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    SubjectRe: [PATCH v4 06/10] KVM: MMU: fast path of handling guest page fault
    On 05/05/2012 05:08 PM, Marcelo Tosatti wrote:
    > It would be better if all these complications introduced by lockless
    > updates can be avoided, say using A/D bits as Avi suggested.

    Note that using A/D bits introduces new tradeoffs (when just a few bits
    are dirtied per iteration, we reduce guest overhead, but increase host
    overhead, since it has to scan a large number of sptes), and also a
    large fraction of deployed systems don't have A/D bits support. But it
    should affect our thinking - since in the long term all hosts will have it.

    error compiling committee.c: too many arguments to function

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      Last update: 2012-05-06 15:26    [W:0.021 / U:6.512 seconds]
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