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Re: Route cache performance tests

To: sim@xxxxxxxxxxxxx
Subject: Re: Route cache performance tests
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Tue, 17 Jun 2003 08:59:21 -0700 (PDT)
Cc: ralph+d@xxxxxxxxx, hadi@xxxxxxxxxxxxxxxx, xerox@xxxxxxxxxx, fw@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx, linux-net@xxxxxxxxxxxxxxx
In-reply-to: <20030616234937.GE18484@netnation.com>
References: <20030616.160856.35828947.davem@redhat.com> <20030616232750.GD18484@netnation.com> <20030616234937.GE18484@netnation.com>
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   From: Simon Kirby <sim@xxxxxxxxxxxxx>
   Date: Mon, 16 Jun 2003 16:49:37 -0700

   60.0073 seconds passed, avg forwarding rate: 157557.710 pps
   
   ...Looks like a tad worse than with your patch, but not by much. 
   Forwarding rate is still pretty crappy for an Opteron.  Will fiddle
   a bit more tonight to see what I can do.

To be honest, this isn't half-bad for pure DoS load.

This reminds me, maybe a good test would be PPS for "well behaved
flows" in the presence of DoS load.  You'd probably need 4 systems
to carry out such a test accurately.

Because, really, who cares how fast we can forward the DoS traffic
as long as legitimate users still see good metrics.

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