Re: more on hash functions

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 15 Apr 1999 18:41:21 +0100 (BST)


> in theory that's true. however, i also tried a pair of 10 (or 12) bit
> random tables x-ored together without shifting, and the result wasn't much
> better. i think you can get away with this if your input data allows it.

Tables that big start to cost you in cache misses what you saved in
multiplies

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