On 5/4/20 5:20 PM, John Cowan wrote:
> On Mon, May 4, 2020 at 2:39 PM Bradley Lucier <xxxxxx@purdue.edu
> <mailto:xxxxxx@purdue.edu>> wrote:
>
>     So if the difference is 0.348399 versus 0.896669 for using
>
>     (let ((A_ (array-getter A))) ... (A_ i j))
>
>     versus
>     ( ... (array-ref A i j))
>
>     then it's worth investigating.
>
>
> That is remarkably large.  Still, the rationale here is
> convenience/familiarity rather than performance.

If array-ref and array-set! were macros they would be quite a bit faster.

I wonder whether this could be an option.

Brad