From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] Add prefetches in net/ipv4/route.c
Date: Thu, 28 Jul 2005 15:44:20 -0700 (PDT)
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From: Eric Dumazet <dada1@cosmosbay.com>
Date: Thu, 28 Jul 2005 23:24:33 +0200

> On a dual opteron machine, this thing from ip_route_input() is very expensive :
> 
>   RT_CACHE_STAT_INC(in_hlist_search);

That's amazing since it's per-cpu.  I don't have any suggestions
besides your idea to increment it once using an accumulation local
variable.