Re: 40% cache hit rates

David J N Begley <d.begley@nepean.uws.edu.au> wrote:
>Speaking of 40% rates being "wierd" or "nice", you're going to *hate*
>this; but our averages are 40-50% (50+% on the odd occasion, record is
>well over 60% one weekend) on requests alone, 30-40% for traffic (TCP
>bytes).

We usually get 35-45% on requests, 40-50+% on bytes.

>Our cache is only a midget at 1.3Gb. :-)

Ours is a little bigger at 15Gb :-)

>We found "tuning" of ttl's (after watching the most hit sites/URLs in the
>daily stats) to do wonders for the hit rates. The number one site through
>our main proxy is "home.netscape.com" (surprise, surprise), with a 98+%
>cache traffic hit rate (TCP bytes).

This certainly helped us a lot as well. We've set netscape.com to 12 hours
ttl. How long do you give them?

Cheers,
Marty.
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Martin Gleeson Webmeister | http://www.unimelb.edu.au/%7Egleeson/
Information Technology Services | Email : gleeson@unimelb.edu.au
The University of Melbourne, Oz. | Opinions : Mine, all mine.
      "I hate quotations." -- Ralph Waldo Emerson, Journals (1843)
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Received on Wed Oct 23 1996 - 16:05:28 MDT