From: Eli Zaretskii <eliz@gnu.org>
To: "João Távora" <joaotavora@gmail.com>
Cc: 71367@debbugs.gnu.org, acorallo@gnu.org, theo@thornhill.no, tsdh@gnu.org
Subject: bug#71367: 30.0.50; ELPA package breadcrumb causes Emacs freeze when editing json file
Date: Thu, 06 Jun 2024 14:33:26 +0300 [thread overview]
Message-ID: <86sexqgvax.fsf@gnu.org> (raw)
In-Reply-To: <CALDnm508Qf2XBubgPEOQboFWe+ofh8sZXTXsq+yCdsd34cTR2w@mail.gmail.com> (message from João Távora on Thu, 6 Jun 2024 11:07:54 +0100)
> From: João Távora <joaotavora@gmail.com>
> Date: Thu, 6 Jun 2024 11:07:54 +0100
> Cc: Andrea Corallo <acorallo@gnu.org>, tsdh@gnu.org, 71367@debbugs.gnu.org,
> theo@thornhill.no
>
> > Maybe João could suggest some trick or user option to cut down that
> > initial time to reasonable level.
>
> No, but feel free to profile and suggest Elisp changes or algorithmic
> changes. Maybe the vconcat re-allocations in breadcrumb--ipath-plain
> re-allocations are to blame? It's O(N^2) allocations I think.
Could be.
> What's the length of bc--ipath-plain? 17500ish? If so, then the
> thing would be to reserve some space in the vector upfront, but I
> don't know how to do that easily in Elisp (in CL there's VECTOR-PUSH
> and VECTOR-PUSH-EXTEND).
I'd say allocate some initial space with make-vector, and then enlarge
using vconcat or something?
next prev parent reply other threads:[~2024-06-06 11:33 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 19:40 bug#71367: 30.0.50; ELPA package breadcrumb causes Emacs freeze when editing json file Tassilo Horn
2024-06-04 20:49 ` Andrea Corallo
2024-06-05 7:24 ` Tassilo Horn
2024-06-05 9:36 ` Andrea Corallo
2024-06-06 9:35 ` Eli Zaretskii
2024-06-06 10:07 ` João Távora
2024-06-06 11:33 ` Eli Zaretskii [this message]
2024-06-06 11:47 ` João Távora
2024-06-06 12:08 ` Eli Zaretskii
2024-06-06 13:00 ` João Távora
2024-06-06 13:37 ` Eli Zaretskii
2024-06-06 14:01 ` João Távora
2024-06-06 14:29 ` Tassilo Horn
2024-06-07 21:23 ` Jeremy Bryant via Bug reports for GNU Emacs, the Swiss army knife of text editors
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