[plt-scheme] PLT4 expectations

On Mon, Mar 10, 2008 at 2:34 PM, Paulo J. Matos <pocm at soton.ac.uk> wrote:
...
>  The idea of PLT4 creating by default immutable pairs and the so, means
>  that it also opens the possibility for far more and better
>  optimizations in the compiler, right?
>  Will these be implemented or the change to immutable structures is
>  just to have cleaner, more understandable code?

3.99 already spanks 372 on my benchmarks.  On my todo list is cleaning
up the benchmarks and posting to the list, but the diff is about 10%
IIRC.

N.