From: Simon Kirby <sim@netnation.com> Date: Thu, 22 May 2003 01:40:03 -0700 9631 handle_IRQ_event 60.1938 Are you using APIC irqs? 26552 fn_hash_lookup 92.1944 Hmm! I guess the routing table size has a slight difference on performance there. I assume you have CONFIG_IP_ROUTE_LARGE_TABLES enabled. If not, try with that turned on. If you had it on or enabling it makes little difference, it is time to play with FZ_MAX_DIVISOR and fn_hash(). All of your BGP routes have the same prefix right? Yes, with ~181000 routes which you have fib zone hash in current state will fall to pieces I am afraid. (even with perfect hash, chain length would be on the order of ~180 entries :-((( ) I'm not sure if this is a "good" profile or not... I can try with oprofile or something instead if that gives more useful results. It is good, thanks. Alexey, I will try to make something... - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html