On Fri, Sep 24, 2010 at 11:30 AM, Simon Marlow <marlowsd@gmail.com> wrote:

I'm not sure if we should be basing all our decisions on measurements done with Map Int. Clients using Map Int can already get a huge speed boost by switching to IntMap. Let's use something more realistic like Map ByteString or Map Integer with some big Integers.

For the record I also ran the benchmarks using (small) Integer keys and the speedups are nearly identical.