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bug#64735: 29.0.92; find invocations are ~15x slower because of ignores
From: |
Spencer Baugh |
Subject: |
bug#64735: 29.0.92; find invocations are ~15x slower because of ignores |
Date: |
Thu, 20 Jul 2023 13:08:24 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Ihor Radchenko <yantar92@posteo.net> writes:
> Dmitry Gutov <dmitry@gutov.dev> writes:
>
>>>> ... Last I checked, Lisp-native file
>>>> listing was simply slower than 'find'.
>>>
>>> Could it be changed?
>>> In my tests, I was able to improve performance of the built-in
>>> `directory-files-recursively' simply by disabling
>>> `file-name-handler-alist' around its call.
>>
>> Then it won't work with Tramp, right? I think it's pretty nifty that
>> project-find-regexp and dired-do-find-regexp work over Tramp.
>
> Sure. It might also be optimized. Without trying to convince find devs
> to do something about regexp handling.
Not to derail too much, but find as a subprocess has one substantial
advantage over find in Lisp: It can run in parallel with Emacs, so that
we actually use multiple CPU cores.
Between that, and the remote support part, I personally much prefer find
to be a subprocess rather than in Lisp. I don't think optimizing
directory-files-recursively is a great solution.
(Really it's entirely plausible that Emacs could be improved by
*removing* directory-files-recursively, in favor of invoking find as a
subprocess: faster, parallelized execution, and better remote support.)
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, (continued)
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Ihor Radchenko, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Michael Albinus, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Ihor Radchenko, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Michael Albinus, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Ihor Radchenko, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Michael Albinus, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Ihor Radchenko, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Eli Zaretskii, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Michael Albinus, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Dmitry Gutov, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores,
Spencer Baugh <=
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Eli Zaretskii, 2023/07/20
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Po Lu, 2023/07/22
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Ihor Radchenko, 2023/07/20
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Spencer Baugh, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Ihor Radchenko, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Dmitry Gutov, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Spencer Baugh, 2023/07/21
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Po Lu, 2023/07/22
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Dmitry Gutov, 2023/07/22
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Eli Zaretskii, 2023/07/23