GNU bug report logs - #78665
31.0.50; Very slow saves

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Message #23 received at 78665 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Eli Zaretskii <eliz <at> gnu.org>, Jonas Bernoulli <jonas <at> bernoul.li>,
 78665 <at> debbugs.gnu.org
Subject: Re: bug#78665: 31.0.50; Very slow saves
Date: Tue, 03 Jun 2025 18:37:01 +0300

> I sent the bug-report because I had finally the backtrace to point the
> finger at something but couldn't investigate further at that point.
> But now that you mention it, maybe the culprit is:
>
>     commit 746a3cb3143194436c4a1a63d26aac890c1a705f
>     Author: Juri Linkov <juri <at> linkov.net>
>     Date:   Tue Apr 29 19:55:48 2025 +0300
>
>         Ignore parens in strings for outline headings in emacs-lisp-mode.
>
> [ Poor Juri: while it's his change, I was the one who asked him to install
>   it into `master` since it seemed like an obvious improvement (I mean,
>   it is, but I didn't forsee such impacts on performance).   ]

So Jonas was right?  `syntax-ppss' is too slow
when called too many times?  Maybe it's possible
to reduce the number of calls?

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