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From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Spencer Baugh <sbaugh@janestreet.com>
Cc: dmitry@gutov.dev, 74561@debbugs.gnu.org, juri@linkov.net
Subject: bug#74561: [PATCH] Allow limiting the size of *Completions*
Date: Thu, 28 Nov 2024 23:12:59 -0500	[thread overview]
Message-ID: <jwvo71yk7s6.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <iercyigfmq8.fsf@janestreet.com> (Spencer Baugh's message of "Wed, 27 Nov 2024 15:25:19 -0500")

> From profiling, the main bottleneck in completion over large
> completion sets is display-completion-list, when there are many
> available candidates.

Hmm... interesting.  I expected it would be the computation of faces
from things like `completion-pcm--hilit-commonality`.

Do you happen to know which part of `display-completion-list` is the
most costly?  is it the actual insertion into the buffer?

I think we should try and fill the buffer lazily.  We don't have much
experience with "jit" populating a buffer (the closest I can think of is
the `vlf` package, which doesn't do "jit", IIRC), so it may take some
trial-and-error until we have something that works, but it
seems worthwhile.


        Stefan






  parent reply	other threads:[~2024-11-29  4:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-27 20:25 bug#74561: [PATCH] Allow limiting the size of *Completions* Spencer Baugh via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-27 23:23 ` Drew Adams via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-28  6:42 ` Eli Zaretskii
2024-11-28 18:18 ` Juri Linkov
2024-11-29  2:36   ` Drew Adams via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-29  4:12 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2024-11-29 14:45   ` Spencer Baugh via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-30 17:17     ` Dmitry Gutov

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