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    SubjectRe: [RFC PATCH v9 00/16] Provide a zero-copy method on KVM virtio-net.
    On Tue, 2010-08-10 at 18:23 -0700, Shirley Ma wrote:
    > Also I found some vhost performance regression on the new
    > kernel with tuning. I used to get 9.4Gb/s, now I couldn't get it.

    I forgot to mention the kernel I used 2.6.36 one. And I found the native
    host BW is limited to 8.0Gb/s, so the regression might come from the
    device driver not vhost.


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