MPS: bignums (was: MPS: optimized build)

[Helmut Eller]

On Mon, May 06 2024, Helmut Eller wrote:

> I had to disable the pidigits program because the MPS version ate all
> memory and began to swap.  There's probably something wrong with
> bignums.

It seems that bignums aren't freed because that would need finalization.
But as long as Emacs is busy executing the benchmark program, it doesn't
process finalization messages.

We could create a separate finalization thread that processes these
messages.  For bignums this thread could call mpz_clear, which I suppose
is thread safe.  Things aren't so easy for the case where we need to
call a Lisp function.  We could create a timer that calls this function.

WDYT?