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    SubjectRe: [PATCHv3 0/6] tun zerocopy support
    From: "Michael S. Tsirkin" <>
    Date: Fri, 20 Jul 2012 22:23:03 +0300

    > Same as with macvtap, I get single-percentage wins in CPU utilization
    > on guest to external from this patchset, and a performance regression on
    > guest to host, so more work is needed until this feature can move out of
    > experimental status, but I think it's useful for some people already.
    > Pls review and consider for 3.6.

    It doesn't improve performance in one case, and hurts performance in

    You'll have to give me a more compelling argument than that. You've
    just given me every reason not to include these patches in 3.6

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      Last update: 2012-07-21 03:21    [W:0.032 / U:14.844 seconds]
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