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Date:	Wed, 8 Aug 2007 17:06:41 -0700
From:	Shirley Ma <>
To:	Herbert Xu <>
Cc:	David Miller <>,,,,,,,,,,,,,,,,,,, Venkata Jagana <>
Subject: Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

Hello Herbert,

> > 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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