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bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak
From: |
Eli Zaretskii |
Subject: |
bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak |
Date: |
Mon, 13 Dec 2021 15:07:49 +0200 |
> From: Arthur Miller <arthur.miller@live.com>
> Cc: juri@linkov.net, amperry@provide.net, stefan@marxist.se,
> 52384@debbugs.gnu.org
> Date: Mon, 13 Dec 2021 11:14:27 +0100
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > No, ls-lisp.el is not used on any Posix hosts.
>
> I thought so; would it be unrealistic to suggest that Emacs by default
> switches
> to ls-lisp.el on all hosts?
Yes. ls-lisp doesn't support all of the switches that GNU ls
supports.
> I have done some measurements, not very scientific, just tested simply gnu ls
> vs
> directory-files on my Arch Linux, with a directory ~5000 files. As I see it on
> my computer, the most of time is spent on I/O, once the system has cached
> inodes, it almost does not matter if I use ls binary or sl-lisp.el, or
> directory-files directly:
>
> *** Welcome to IELM *** Type (describe-mode) for help.
> ELISP> (benchmark-run 1 (find-file "/s/backup/unsorted"))
> (0.202678959 0 0.0)
>
> ELISP> (benchmark-run 1 (directory-files "/s/backup/unsorted"))
> (0.003737047 0 0.0)
>
> ELISP> (benchmark-run 1 (find-file "/s/backup/unsorted"))
> (0.001892588 0 0.0)
>
> ELISP> (benchmark-run 1 (find-file "/s/backup/unsorted"))
> (0.001898974 0 0.0)
>
> ls is faster of course, but not like a magnitude faster.
I don't understand what you compared here. Which results are wil ls
and which with ls-lisp? And why do you benchmark directory-files and
nit insert-directory?
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, (continued)
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Drew Adams, 2021/12/11
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Juri Linkov, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Drew Adams, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Juri Linkov, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Arthur Miller, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Juri Linkov, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Eli Zaretskii, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Arthur Miller, 2021/12/13
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Stefan Kangas, 2021/12/13
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Arthur Miller, 2021/12/13
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak,
Eli Zaretskii <=
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Arthur Miller, 2021/12/13
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Eli Zaretskii, 2021/12/13
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Arthur Miller, 2021/12/13
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Drew Adams, 2021/12/12
- bug#52384: [External] : bug#52384: 26.3; dired buffer navigation tweak, Juri Linkov, 2021/12/12
bug#52384: 26.3; dired buffer navigation tweak, Lars Ingebrigtsen, 2021/12/10