From: Joel VanderWerf <vjoel@...>
Date: 2004-08-19T08:13:32+09:00
Subject: Re: ANN: Crypt::ISAAC 0.9

Bob Jenkins wrote:
> Initialization is much faster with size 16 instead of 256, and it
> consumes less memory, and it is less secure, but the number of
> instructions to produce a value remains the same.  If you're using
> millions of values, it's unclear that it's faster.

Good point. The generation time appears to be linear in the size, so 
over the long term, there's probably no difference in speed, unless 
there are cache effects. Still, I think the 16 size is worthwhile as an 
option if you have lots of generators, some of which may only be used to 
produce a small sequence of numbers.