On Fri, 29 Jan 2010 11:46:43 pm Rusty Russell wrote:

Hi Dave,

   Nice driver optimization from Shirley, but requires a new virtio hook.
Do you want to take both?  I have nothing else overlapping it.

Dave, any news on this?  Shirley, I note that your final commit message did
not contain this information from your original version:

	Tests have been done for small packets, big packets and
	mergeable buffers.

	The single netperf TCP_STREAM performance improved for host to guest. 
	It also reduces UDP packets drop rate.

	The netperf laptop results were:

	mtu=1500
	netperf -H xxx -l 120

	                w/o patch       w/i patch (two runs)    
	guest to host:  3336.84Mb/s   3730.14Mb/s ~ 3582.88Mb/s

	host to guest:  3165.10Mb/s   3370.39Mb/s ~ 3407.96Mb/s

Thanks,
Rusty.