A superlative idea... However, I didn't make my intentions apparent enough - my fault.
At the moment the system uses such a large amount of memory that portions of the data set are paged off to disk. This slowdown (While, admittedly, being somewhat slower than simply pulling everything from disk, there is a comparison to be drawn with disk based data access) makes the project unuseable due to having to pull data off disk.

I was willing to trade off speed in adding data to the hash, but not in doing an actual hash lookup.
What I'm asking is quite likely unreasonable, but then again, thats why I put it to all you fine and smart folks - to show me where the problems in my plans lay.

JP,
-- Alexander Widdlemouse undid his bellybutton and his bum dropped off --


In reply to Re: Re: A memory efficient hash, trading off speed - does it already exist? by JPaul
in thread A memory efficient hash, trading off speed - does it already exist? by JPaul

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