From: Lars Ingebrigtsen <larsi@gnus.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: dired and ls
Date: Sun, 21 Feb 2016 13:10:41 +1100 [thread overview]
Message-ID: <87h9h2ke3i.fsf@gnus.org> (raw)
In-Reply-To: <83k2lzpuuj.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 20 Feb 2016 11:57:40 +0200")
Eli Zaretskii <eliz@gnu.org> writes:
>> If we instead had `directory-files-with-attributes' in C, we could just
>> do what "ls" does, which is... opening the directory, reading it, and
>> then statting all the files.
>
> ls-lisp already uses directory-files-with-attributes.
Aha. I didn't know about `directory-files-and-attributes'. And it,
indeed, just reads the directory and then stats all the files...
>> So it should be just as fast? I think?
>
> You should measure it, instead of trying to reason about that. IME,
> reasoning about relative timings of programs is never a good idea,
> because measurements always produce surprising results.
Sure. But it helps talking about stuff before starting to do the real
work...
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2016-02-21 2:10 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-20 1:15 Human-readable file sorting Lars Ingebrigtsen
2016-02-20 1:58 ` John Wiegley
2016-02-20 2:26 ` Lars Ingebrigtsen
2016-02-20 2:33 ` John Wiegley
2016-02-20 6:00 ` Lars Ingebrigtsen
2016-02-20 6:12 ` Marcin Borkowski
2016-02-20 7:15 ` Lars Ingebrigtsen
2016-02-20 8:14 ` Marcin Borkowski
2016-02-22 18:09 ` Nikolaus Rath
2016-02-22 21:31 ` Marcin Borkowski
2016-02-23 6:13 ` Yuri Khan
2016-02-23 8:32 ` Andreas Schwab
2016-02-24 5:39 ` Marcin Borkowski
2016-02-20 6:17 ` John Wiegley
2016-02-20 7:11 ` Lars Ingebrigtsen
2016-02-20 9:28 ` Eli Zaretskii
2016-02-20 10:24 ` martin rudalics
2016-02-20 10:53 ` Eli Zaretskii
2016-02-20 17:30 ` Michael Heerdegen
2016-02-20 18:25 ` Drew Adams
2016-02-20 6:16 ` dired and ls (was: Human-readable file sorting) Lars Ingebrigtsen
2016-02-20 6:19 ` dired and ls John Wiegley
2016-02-20 7:25 ` Lars Ingebrigtsen
2016-02-20 8:01 ` John Wiegley
2016-02-23 7:15 ` Thierry Volpiatto
2016-02-23 16:34 ` John Wiegley
2016-02-20 9:57 ` dired and ls (was: Human-readable file sorting) Eli Zaretskii
2016-02-20 19:21 ` dired and ls John Wiegley
2016-02-20 21:02 ` Eli Zaretskii
2016-02-20 21:24 ` John Wiegley
2016-02-21 2:10 ` Lars Ingebrigtsen [this message]
2016-02-20 8:53 ` Human-readable file sorting Eli Zaretskii
2016-02-20 11:32 ` Lars Ingebrigtsen
2016-02-20 11:36 ` Eli Zaretskii
2016-02-20 11:45 ` Lars Ingebrigtsen
2016-02-20 12:35 ` Eli Zaretskii
2016-02-21 2:14 ` Lars Ingebrigtsen
2016-02-21 23:36 ` Richard Stallman
2016-02-22 2:58 ` Lars Ingebrigtsen
2016-02-22 18:01 ` Richard Stallman
2016-02-22 18:13 ` Pierpaolo Bernardi
2016-02-22 19:00 ` Eli Zaretskii
2016-02-23 17:43 ` Richard Stallman
2016-02-23 18:00 ` Eli Zaretskii
2016-02-24 1:51 ` Lars Ingebrigtsen
2016-02-24 13:43 ` Richard Stallman
2016-02-24 13:41 ` Richard Stallman
2016-02-20 14:23 ` Alexis
2016-02-20 14:43 ` Eli Zaretskii
2016-02-21 2:18 ` Lars Ingebrigtsen
2016-02-21 9:30 ` Alexis
2016-02-21 10:07 ` Lars Ingebrigtsen
2016-02-21 19:27 ` Yuri Khan
2016-02-21 20:21 ` Eli Zaretskii
2016-02-20 15:35 ` Pierpaolo Bernardi
2016-02-20 15:52 ` Eli Zaretskii
2016-02-21 12:45 ` Richard Stallman
2016-02-20 16:03 ` Herring, Davis
2016-02-20 16:23 ` Paul Eggert
2016-02-21 2:20 ` Lars Ingebrigtsen
2016-02-21 12:45 ` Richard Stallman
2016-02-21 2:38 ` Stefan Monnier
2016-02-20 14:32 ` Richard Stallman
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