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bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large nu
From: |
Eli Zaretskii |
Subject: |
bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers |
Date: |
Tue, 03 Oct 2023 09:00:39 +0300 |
> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: Ihor Radchenko <yantar92@posteo.net>, dmitry@gutov.dev,
> 66117@debbugs.gnu.org
> Date: Tue, 03 Oct 2023 05:25:39 +0200
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > > Aside: this reminds me about obsoletion of generalized buffer-local
> > > variable. AFAIU, there is currently no way to set buffer-local value in
> > > buffer without setting that buffer to current. It would be nice if such
> > > setting were possible, especially in performance-critical code.
> >
> > Maybe, but is there any performance-critical code which needs that?
>
> I don't know, but the gv-setter of `buffer-local-value' also calls
> `with-current-buffer', so using it was not better performance-wise.
If we discover enough performance-critical cases with that, we could
provide a special way, implemented in C, of doing that efficiently.