From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: Eli Zaretskii <eliz@gnu.org>, 57245@debbugs.gnu.org
Subject: bug#57245: 29.0.50; M-> in a large XML file (without long lines) is slow
Date: Tue, 16 Aug 2022 16:22:03 -0400 [thread overview]
Message-ID: <jwvtu6c549x.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <913e0b46-7145-d39d-1fcd-bc17094e28f2@yandex.ru> (Dmitry Gutov's message of "Tue, 16 Aug 2022 22:32:23 +0300")
Dmitry Gutov [2022-08-16 22:32:23] wrote:
> On 16.08.2022 19:54, Eli Zaretskii wrote:
>> Stefan, can you see why syntax-related stuff in sgml-mode is so heavy
>> here?
> nxml-syntax-propertize might well be heavier than average, but the delay
> scales linearly with the size of the file.
Indeed, it should be linear.
> Which seems to be exactly the behavior the "font-lock narrowing" was
> supposed to guard from?
Not sure which narrowing you're referring to.
The "locked narrowing" introduced by Gregory is only installed in the
presence of long lines. It's (currently) not used for large files
(unless they contain long lines, that is).
Stefan
next prev parent reply other threads:[~2022-08-16 20:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-16 14:33 bug#57245: 29.0.50; M-> in a large XML file (without long lines) is slow Dmitry Gutov
2022-08-16 16:54 ` Eli Zaretskii
2022-08-16 18:40 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-16 18:59 ` Eli Zaretskii
2022-08-16 19:32 ` Dmitry Gutov
2022-08-16 20:22 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2022-08-16 20:49 ` Dmitry Gutov
2022-08-16 21:45 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-16 22:20 ` Dmitry Gutov
2022-08-17 11:36 ` Eli Zaretskii
2022-08-17 11:46 ` Dmitry Gutov
2022-08-17 12:16 ` Eli Zaretskii
2022-08-17 12:30 ` Dmitry Gutov
2022-08-17 12:33 ` Eli Zaretskii
2022-08-17 12:46 ` Dmitry Gutov
2022-08-17 11:24 ` Eli Zaretskii
2022-08-17 12:14 ` Dmitry Gutov
2022-08-17 12:20 ` Eli Zaretskii
2022-08-17 12:40 ` Dmitry Gutov
2022-08-17 13:20 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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