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Re: Route cache performance under stress

To: Jamal Hadi <hadi@xxxxxxxxxxxxxxxx>
Subject: Re: Route cache performance under stress
From: Ralph Doncaster <ralph@xxxxxxxxx>
Date: Tue, 10 Jun 2003 09:18:37 -0400 (EDT)
Cc: Simon Kirby <sim@xxxxxxxxxxxxx>, "netdev@xxxxxxxxxxx" <netdev@xxxxxxxxxxx>, "linux-net@xxxxxxxxxxxxxxx" <linux-net@xxxxxxxxxxxxxxx>
In-reply-to: <20030610072444.Q37105@shell.cyberus.ca>
References: <008001c32eda$56760830$4a00000a@badass> <20030609195652.E35696@shell.cyberus.ca> <Pine.LNX.4.51.0306092006420.12038@ns.istop.com> <20030609204257.L35799@shell.cyberus.ca> <Pine.LNX.4.51.0306092200150.28167@ns.istop.com> <20030610043453.GC23009@netnation.com> <20030610072444.Q37105@shell.cyberus.ca>
Reply-to: ralph+d@xxxxxxxxx
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On Tue, 10 Jun 2003, Jamal Hadi wrote:

> As a side note, note that stateless forwarding like BSD patricie tries
> is no longer sufficient. Its no longer just looking up a nexthop, dec ttl,
> recompute csum that we are optimizing for.

It would certainly be sufficient for core routing.  If I can have flow
manipulation at no extra cost, I'll take it.  If it's going to double the
horsepower requirements, I don't want it.

-Ralph


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