From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [RFC] [PATCH] udp: optimize lookup of UDP sockets to by including destination address in the hash key
Date: Thu, 05 Nov 2009 13:12:07 +0100
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Cc: Octavian Purdila <opurdila@ixiacom.com>,
	Lucian Adrian Grijincu <lgrijincu@ixiacom.com>,
	netdev@vger.kernel.org
To: Eric Dumazet <eric.dumazet@gmail.com>
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In-Reply-To: <4AF20F02.7000601@gmail.com> (Eric Dumazet's message of "Thu, 05 Nov 2009 00:32:18 +0100")
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Eric Dumazet <eric.dumazet@gmail.com> writes:
>
> I have struct reorderings in progress to reduce number of cache lines read
> per socket from two to one. So this would reduce by 50% time to find
> a particular socket in the chain.

Assuming that each access takes equal time seems like a rather dubious
assumption. Consider caches.

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.