On Sun, 19 Dec 2004, Per Bothner wrote:

> As others have pointed out: the srfi-57 implementation is dog slow.
> ...

I know, this is an issue on most implementations (Chez being the only
counterexample known to me).  For now it provides a relatively
portable proof of concept, but a low-level implementation would arguably
be more useful.

> In addition, I think it should be possible to tweak the code to
> make it run faster on all/mot implementations.  Unfortuantely,
> I don't pretend to understand the code (at least not yet),
> but here are some ideas:
> ...

If you find that these help, please consider posting the tweaked code on
this list.

I am hoping at some point someone will contribute a low-level macro
implementation.  That would be very useful to implementors.  Unfortunately
I personally will not have time to contribute one before finalization due
to other obligations.

Regards
Andre