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bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large nu
From: |
Michael Heerdegen |
Subject: |
bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers |
Date: |
Thu, 28 Sep 2023 01:30:37 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Ihor Radchenko <yantar92@posteo.net> writes:
> So, using `with-current-buffer' when looping over all the buffers is
> certainly not optimal (maybe in other places as well).
>
> However, even `buffer-local-value' is still costly - it adds up over 50%
> run time.
OTOH - I tried to reproduce your experiments here locally -
`find-buffer-visiting' only takes 12% of the total run time here when
using the `buffer-local-value' tuned definition of `find-buffer-visiting'.
When we additionally merge the two loops in `find-buffer-visiting' into
one loop and avoid the duplicated calls of `buffer-local-value', don't we
reach a region where maintaining a separate cache doesn't make sense for
the additional gain?
And I wonder which part(s) of `buffer-local-value' is/are that costly,
and why.
Storing the same information twice - once in a buffer local variable,
and then again in a cache that needs to be updated separately doesn't
sound very reasonable.
Michael.
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, (continued)
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/22
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Eli Zaretskii, 2023/09/22
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/23
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Eli Zaretskii, 2023/09/23
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/24
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Eli Zaretskii, 2023/09/24
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/26
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Michael Albinus, 2023/09/26
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Dmitry Gutov, 2023/09/26
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/26
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers,
Michael Heerdegen <=
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Eli Zaretskii, 2023/09/29
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/29
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Eli Zaretskii, 2023/09/29
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Dmitry Gutov, 2023/09/22
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Eli Zaretskii, 2023/09/22
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Ihor Radchenko, 2023/09/22
- bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers, Dmitry Gutov, 2023/09/22