[racket-dev] Optional equality predicate for assoc and member

On Sat, Apr 23, 2011 at 12:52 AM, Eli Barzilay <eli at barzilay.org> wrote:
> Is there some obvious reason for the huge difference in improvement
> between the 32 and the 64 bits (Almost twice slower and roughly the
> same resp.)?

My guess is that this benchmark is dominated by memory access time,
and on 64-bit machines you're shifting twice as much memory.

N.