From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: TCPBacklogDrops during aggressive bursts of traffic
Date: Tue, 15 May 2012 19:23:59 +0200
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Cc: Kieran Mansley <kmansley@solarflare.com>, netdev@vger.kernel.org
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On Tue, 2012-05-15 at 19:01 +0200, Eric Dumazet wrote:

> 
> napi_get_frags() could probably updated in net-next to use the first
> frag as skb->head to save 512 bytes per skb.

By the way GRO_MAX_HEAD definition is way too big, napi_get_frags()
allocates fat skbs (1280 bytes of overhead instead of 768 bytes)

This should be enough :

#define GRO_MAX_HEAD 128