Re: [PATCH V1 net-next 1/1] hyperv: Enable sendbuf mechanism on the send path

[David Miller]

From: "K. Y. Srinivasan" <kys@xxxxxxxxxxxxx>
Date: Wed, 30 Apr 2014 10:14:31 -0700

> We send packets using a copy-free mechanism (this is the Guest to Host transport
> via VMBUS). While this is obviously optimal for large packets,
> it may not be optimal for small packets. Hyper-V host supports
> a second mechanism for sending packets that is "copy based". We implement that
> mechanism in this patch.
> 
> In this version of the patch I have addressed a comment from David Miller.
> 
> With this patch (and all of the other offload and VRSS patches), we are now able
> to almost saturate a 10G interface between Linux VMs on Hyper-V
> on different hosts - close to  9 Gbps as measured via iperf.
> 
> Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> Reviewed-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>

Applied.
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