From: Dido Sevilla <dido.sevilla@...>
Date: 2011-01-19T12:54:18+09:00
Subject: Re: Improving performance of hash math

Try not to use the exponentiation operator to square arguments. Direct
exponentiation is very inefficient except for large values. It is
almost always better to use straightforward multiplication when your
powers are reasonably small. Other than this I can't think of any way
to improve performance short of dropping to C, and even there I think
the performance improvement you'll get would be marginal.

Have you tried profiling your code? The profiler can tell you a lot
about where it actually spends time doing stuff and can be very
enlightening about optimization.

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