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SubjectRe: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net.
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Hello Michael,

On Sun, 2010-08-01 at 11:31 +0300, Michael S. Tsirkin wrote:
> I think we should explore the idea for the driver to fall back on data
> copy
> for small message sizes.
> The benefit of zero copy would then be CPU utilization on large
> messages.

Yes, we used to have 128 bytes for small copy in other driver. I saw
Xiaohui's patch here is using 64 bytes. I think we need to compare the
performance on different platform to decide what's the best for small
message size.

Thanks
Shirley



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