netdev - Re: many sockets, slow sendto

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Message-Id: <20070430.002643.68156452.davem@davemloft.net>
Date:	Mon, 30 Apr 2007 00:26:43 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dada1@...mosbay.com
Cc:	zacco@...hu, baruch@...en.org, netdev@...r.kernel.org
Subject: Re: many sockets, slow sendto

From: Eric Dumazet <dada1@...mosbay.com>
Date: Wed, 21 Mar 2007 23:12:40 +0100

> [PATCH] INET : IPV4 UDP lookups converted to a 2 pass algo
> 
> Some people want to have many UDP sockets, binded to a single port but many 
> different addresses. We currently hash all those sockets into a single chain. 
> Processing of incoming packets is very expensive, because the whole chain must 
> be examined to find the best match.
> 
> I chose in this patch to hash UDP sockets with a hash function that take into 
> account both their port number and address : This has a drawback because we 
> need two lookups : one with a given address, one with a wildcard (null) address.
> 
> Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

Eric, I've applied this, thanks again.

Could I trouble you to cook up an ipv6 version of this patch?

Thanks a lot.
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