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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: |
Fri, 21 Jul 2023 15:31:37 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Ihor Radchenko <yantar92@posteo.net> writes:
> Spencer Baugh <sbaugh@janestreet.com> writes:
>
>>> 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.
>
> Does find use multiple CPU cores?
Not on its own, but when it's running as a separate subprocess of Emacs,
that subprocess can (and will, on modern core-rich hardware) run on a
different CPU core from Emacs itself. That's a form of parallelism
which is very achievable for Emacs, and provides a big performance win.
- 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, 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, 2023/07/20
- 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 <=
- 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
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Dmitry Gutov, 2023/07/23
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Eli Zaretskii, 2023/07/23
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Dmitry Gutov, 2023/07/23
- bug#64735: 29.0.92; find invocations are ~15x slower because of ignores, Eli Zaretskii, 2023/07/23