[ofa-general] Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB
xma at us.ibm.com
Wed Aug 8 17:06:41 PDT 2007
> > Not because I think it obviates your work, but rather because I'm
> > curious, could you test a TSO-in-hardware driver converted to
> > batching and see how TSO alone compares to batching for a pure
> > TCP workload?
> You could even lower the bar by disabling TSO and enabling
> software GSO.
We had a discuss before. GSO doesn't benefit device which has no HW
checksum (like IPoIB) by inducing an extra copy. And GSO benefits one
stream, batching benefits multiple streams.
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