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From Stefano Mazzocchi <>
Subject Re: Adaptive Caching [was Re: initial checkin of the Scheme code]
Date Thu, 20 Dec 2001 23:47:54 GMT
Paulo Gaspar wrote:

> Notice that my focus is just cache efficiency. And, unlike what I have been
> able to transmit, I am interested on significant improvements.

Than we share the same concern :)

[skipped a good example of the need for a sampling key for resource

I think I got you idea in full detail now and I agree it's a very good

The idea is to have the cacheable component logic create both the
caching key for the handled request *AND* a (possibly different)
sampling key.

So, for example, asking for the resource:


might generate a caching key that hashes the entire URI, while might
generate a sampling key that hashes only the general part


thus, every request in this category will be collected in the same
statistical data pool, thus converge sooner and talking less memory.

It's a great idea and, yes, I totally missed it in my proposal.

There are some details to think about but I think it's a great addition
to my model. Thanks for sharing it with us. :)

Stefano Mazzocchi      One must still have chaos in oneself to be
                          able to give birth to a dancing star.
<>                             Friedrich Nietzsche

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