bug#64735: 29.0.92; find invocations are ~15x slower because of ignores

[Ihor Radchenko]

sbaugh@catern.com writes:

> I went ahead and implemented it, and I get a 2x speedup even *without*
> running find in parallel with Emacs.
>
> First my results:
>
> (my-bench 100 "~/public_html" "")
> (("built-in" . "Elapsed time: 1.140173s (0.389344s in 5 GCs)")
>  ("with-find" . "Elapsed time: 0.643306s (0.305130s in 4 GCs)"))
>
> (my-bench 10 "~/.local/src/linux" "")
> (("built-in" . "Elapsed time: 2.402341s (0.937857s in 11 GCs)")
>  ("with-find" . "Elapsed time: 1.544024s (0.827364s in 10 GCs)"))

What about without `file-name-handler-alist'?

> (my-bench 100 "/ssh:catern.com:~/public_html" "")
> (("built-in" . "Elapsed time: 36.494233s (6.450840s in 79 GCs)")
>  ("with-find" . "Elapsed time: 4.619035s (1.133656s in 14 GCs)"))

This is indeed expected.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>