Re: [PATCH] lockfree rtcache lookup using RCU

David S. Miller (davem@redhat.com)
Wed, 08 May 2002 02:09:32 -0700 (PDT)


From: Dipankar Sarma <dipankar@in.ibm.com>
Date: Wed, 8 May 2002 14:24:33 +0530

On Wed, May 08, 2002 at 01:10:08AM -0700, David S. Miller wrote:
> Also, workload for single destination isn't all that interesting
> since such a workload isn't all that common except in benchmarking.

A heavily loaded webserver with NATed ip addresses. Would this not
result in many server processes looking up the same ip address ?

The more common situation is server N IP (where N is 1 or a very small
number), destination clients == thousands of IPs.

So looking up the same dst cache entry with each benchmark client
is very unrealistic. Try a unique IP address for every single lookup.

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