netdev - Re: gso: Attempt to handle mega-GRO packets

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Message-ID: <1383715222.4291.158.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 05 Nov 2013 21:20:22 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
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: Attempt to handle mega-GRO packets

On Wed, 2013-11-06 at 12:28 +0800, Herbert Xu wrote:
> On Tue, Nov 05, 2013 at 08:23:05PM -0800, Eric Dumazet wrote:
> >
> > Nope, I already mentioned this :
> > 
> > Please take a look at 2613af0ed18a11d5c566a81f9a6510b73180660a
> > ("virtio_net: migrate mergeable rx buffers to page frag allocators")
> 
> This patch should simply be reverted.  You guys steam-rolled over
> the virtio_net people's concerns that this seriously impacts virt
> performance.
> 

Have you followed netdev traffic lately ?

virtio_net performance is better than before, and we did no revert,
thank you.

I am really tired, I'll fix skb_segment() tomorrow.



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