There was badarrays branch from Mikachu in the past. it was resolving
constant arrlen() calling.

niedz., 16 kwi 2023, 11:10 użytkownik Roman Perepelitsa <
roman.perepelitsa@gmail.com> napisał:

> On Sun, Apr 16, 2023 at 11:04 AM Stephane Chazelas
> <stephane@chazelas.org> wrote:
> >
> > Accessing array elements via their index is very slow,
> > especially for large index values.
>
> Indeed, access to array elements is O(N) in zsh instead of O(1) that
> one might expect. The same goes for strings, even with no_multibyte.
> This makes computation-heavy code incredibly slow. If someone can fix
> this, they'll have my eternal gratitude.
>
> On the plus side zsh has fast hashtables (closed hashing with
> quadratic probing). Bash's implementation is a lot slower (it's
> node-based).
>
> Roman.
>
>