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Message-ID: <20131113022525.GA28236@gondor.apana.org.au> Date: Wed, 13 Nov 2013 10:25:25 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Ben Hutchings <bhutchings@...arflare.com>, David Miller <davem@...emloft.net>, christoph.paasch@...ouvain.be, netdev@...r.kernel.org, hkchu@...gle.com, mwdalton@...gle.com Subject: Re: gso: Handle new frag_list of frags GRO packets On Wed, Nov 13, 2013 at 10:22:43AM +0800, Herbert Xu wrote: > On Tue, Nov 12, 2013 at 06:17:14PM -0800, Eric Dumazet wrote: > > On Wed, 2013-11-13 at 09:29 +0800, Herbert Xu wrote: > > > > > I presume this is on a NIC that produces completely linear packets? > > > > Sorry : with mlx4 driver, GRO builds nice skbs with one page frag per > > MSS, so each skb found on frag_list is fully loaded with 16 MSS > > OK, so what are the numbers when GRO is off completely? Actually don't bother, it's not a fair comparison at all. In the first case we're doing TSO and with my patch we're only doing GSO. So a better test for the time being would be to test with TSO disabled in both cases. In the mean time I'm cooking up a patch to generate TSO packets. Thanks, -- Email: Herbert Xu <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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