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From Stefano Mazzocchi <stef...@apache.org>
Subject Re: [RT] Adaptive Caching
Date Mon, 21 Jul 2003 22:40:31 GMT

On Friday, Jul 18, 2003, at 07:58 America/Guayaquil, Berin Loritsch 
wrote:

> Geoff Howard wrote:
>
>> Well, since Peter's dragged me into this... ;)
>> Hunsberger, Peter wrote:
>>> Stefano Mazzocchi <stefano@apache.org> writes (and writes, and 
>>> writes,
>>> and writes):
>>>
>>> <small snip/>
>>>
>>>> WARNING: this RT is long! and very dense, so I suggest you to turn 
>>>> on your printer.
>> Stefano, I started writing a response back about 5 minutes after 
>> getting your original RT but started getting the idea I hadn't fully 
>> understood the RT and haven't had time to go back in more detail.  
>> I'm very interested in this and have been following the discussion, 
>> but have been waiting to see if I really "get" it before speaking.  
>> The following would help me (and maybe others?) understand:
>> Which of the following does your RT address:
>> - Deciding when the overhead of caching is worthwhile on a given item.
>> (and which part of the overhead - the act of storing, or the resource 
>> use)
>> - Deciding when to purge the cache (aka, a better StoreJanitor/MRU)
>> In the first scenario I'd have trouble seeing how this calculation 
>> could be any less costly than the current.  But only testing would 
>> tell for sure, and I'll be very interested to see it develop.
>
> It isn't about being less costly to come to the decision, it is about 
> making
> better decisions.  Consider it a more advanced branch detector.

Right on!

--
Stefano.


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