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

[Michael Albinus]

Ihor Radchenko <yantar92@posteo.net> writes:

Hi Ihor,

>> My point was to show the differences in the approaches. Do you have also
>> numbers using without-remote-files and inhibit-remote-files?
>
> (length (directory-files-recursively "~/Git" ""))
> ;; => 113628
> (benchmark-run-compiled 1 (directory-files-recursively "~/Git" ""))
> ;; => (1.597328425 1 0.47237324699997885)
> (benchmark-run-compiled 1 (let (file-name-handler-alist) 
> (directory-files-recursively "~/Git" "")))
> ;; => (1.0012111910000001 1 0.4860752540000135)
> (benchmark-run-compiled 1 (without-remote-files (directory-files-recursively 
> "~/Git" "")))
> ;; => (1.147276594 1 0.48820330999998873)
> (inhibit-remote-files)
> (benchmark-run-compiled 1 (directory-files-recursively "~/Git" ""))
> ;; => (1.054041615 1 0.4141427399999884)

Thanks a lot! These figures show, that both without-remote-files and
inhibit-remote-files are useful. Of course this shouldn't stop us to
find further approaches for performance optimizations.

I'll wait for some days whether there's opposition, before installing
them in master.

Best regards, Michael.