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Re: Transparent Caching Solutions - Information Wanted
In our case it was a company that creates webpages. Their default home pages was their own server. Also they must be demoing/doing quality control their own site quite a bit. Hmm. Targeted marketing... Dirk On Wed, Feb 04, 1998 at 08:30:22AM -0800, Paul A Vixie wrote: > several folks have sent replies to me personally which may be of general > interest: > > > Hit rates are user population dependent. We have seen hit rates > > as high as 30% from a single T1 connected customer (with a population > > of less then 500 people). > > so have we. but that was a computer club with its own POP and they were > mostly sharing interesting (i.e., pornographic) URL's over an IRC back > channel. > > we've got ~80 transparent caching units out in the field, and most of them > are in "normal" modem pools where the users don't know each other and the > communitities of interest have broader splay. > > > ... in some special cases you really can predict what would best be in the > > cache beforehand. You then win from a speed standpoint (pre fetched data > > is served up faster). > > yes, that's true -- in some special cases you can exercise prescience and > if you can then the hit rate goes up by a lot as does the downstream data > rate. > > however, to make this work you have to continuously feed the primary caches > new prescient data (or prescient metadata by which prescient data can be > fetched). interest factor is in other words dynamic and shortlived.