Re: Cache hit ratio?

Russell Street (r.street@auckland.ac.nz) wrote:
>
> 8Gb of disk space for caching with 375,00 objects
> doing a ~50,000 hits per day from ~400 active clients
> getting a 34% hit rate
> getting about a 12% hit rate on our parent cache which we are
> using as a sibling. Size unknown.

I have 2Gig cache space with a 41% (or so) hit rate. The cache serves about
80,000 requests per day (it varies). With squid 1.1.6 it provides a
"Storage LRU Expiration Age" which varies from 3 to 7 days.

I have also noticed that the parent cache hit rate becomes ever smaller
as my own cache gets bigger and the hit rate higher. Actually I'm starting
to wonder if it's worth sending ICP packets at the parent cache if the
hit rate is so small. It sort of throws into question the validity of a
meshed cache hierarchy (especially if you have to cache everything your
cache partners provide to you because they charge you for it).

Cheers.
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Received on Mon Feb 24 1997 - 18:17:11 MST