From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: Eli Zaretskii <eliz@gnu.org>,
stefan@marxist.se, rms@gnu.org, 19776@debbugs.gnu.org
Subject: bug#19776: 25.0.50; HTML rendering is very slow
Date: Sun, 24 Oct 2021 18:14:41 -0400 [thread overview]
Message-ID: <jwvbl3e6pgk.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87fssq2orj.fsf@gnus.org> (Lars Ingebrigtsen's message of "Sun, 24 Oct 2021 21:42:24 +0200")
Lars Ingebrigtsen [2021-10-24 21:42:24] wrote:
> Eli Zaretskii <eliz@gnu.org> writes:
>> When the timer expires, it delivers a signal, but the signal handler
>> only sets a flag. The flag is checked when we call maybe_quit, which
>> calls do_pending_atimers. So a Lisp program that hogs the CPU, and
>> never calls any function that calls maybe_quit, will indeed block
>> atimers. However, this is rare for real-life Lisp programs, because
>> several core primitives call maybe_quit from time to time.
>
> The use case here was for CPU-hogging Lisp code, though, like
> `shr-insert-document'. And it doesn't seem to hit any maybe_quits in
> this very synthetic test:
Basically all loops should call `maybe_quit`, so the issue is probably
not that `maybe_quit` is not called often enough, but that for some
reason we don't set the vars that it checks or something like that.
Stefan
next prev parent reply other threads:[~2021-10-24 22:14 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-04 23:03 bug#19776: 25.0.50; HTML rendering is very slow Richard Stallman
2015-02-05 11:42 ` Nicolas Richard
2015-02-05 16:14 ` Eli Zaretskii
2015-12-25 22:34 ` Lars Ingebrigtsen
2015-12-26 6:14 ` Richard Stallman
2018-04-15 21:49 ` Lars Ingebrigtsen
2018-04-15 22:00 ` Lars Ingebrigtsen
2021-10-22 23:59 ` Stefan Kangas
2021-10-23 7:27 ` Eli Zaretskii
2021-10-24 12:43 ` Lars Ingebrigtsen
2021-10-24 14:04 ` Eli Zaretskii
2021-10-24 14:25 ` Lars Ingebrigtsen
2021-10-24 16:22 ` Lars Ingebrigtsen
2021-10-24 17:06 ` Eli Zaretskii
2021-10-24 17:56 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-24 18:45 ` Lars Ingebrigtsen
2021-10-24 19:10 ` Lars Ingebrigtsen
2021-10-24 19:18 ` Lars Ingebrigtsen
2021-10-24 19:24 ` Eli Zaretskii
2021-10-24 19:42 ` Lars Ingebrigtsen
2021-10-24 20:09 ` Lars Ingebrigtsen
2021-10-24 20:14 ` Lars Ingebrigtsen
2021-10-24 20:18 ` Lars Ingebrigtsen
2021-10-24 20:40 ` Lars Ingebrigtsen
2021-10-24 21:52 ` Stefan Kangas
2021-10-25 13:08 ` Lars Ingebrigtsen
2021-10-25 13:20 ` Eli Zaretskii
2021-10-25 13:33 ` Lars Ingebrigtsen
2021-10-29 17:28 ` Stefan Kangas
2021-10-29 17:38 ` Lars Ingebrigtsen
2021-10-29 17:59 ` bug#51490: Show an indicator when Emacs is busy somewhere in the Emacs window Stefan Kangas
2021-10-30 12:40 ` Lars Ingebrigtsen
2022-09-19 20:16 ` Lars Ingebrigtsen
2022-09-20 11:36 ` Eli Zaretskii
2022-09-21 11:06 ` Lars Ingebrigtsen
2022-09-21 11:49 ` Eli Zaretskii
2022-09-21 12:01 ` Lars Ingebrigtsen
2022-09-21 12:34 ` Stefan Kangas
2022-09-21 13:08 ` Eli Zaretskii
2022-09-21 13:05 ` Eli Zaretskii
2022-09-21 13:32 ` Lars Ingebrigtsen
2022-09-21 14:01 ` Eli Zaretskii
2022-09-21 16:02 ` Gregory Heytings
2022-09-21 16:21 ` Eli Zaretskii
2022-09-21 17:11 ` Gregory Heytings
2022-09-22 6:28 ` Eli Zaretskii
2022-09-22 10:54 ` Lars Ingebrigtsen
2022-09-22 12:33 ` Eli Zaretskii
2022-09-22 13:08 ` Gregory Heytings
2022-09-22 14:03 ` Eli Zaretskii
2022-09-22 15:57 ` Gregory Heytings
2022-09-22 16:21 ` Eli Zaretskii
2022-09-23 15:06 ` Lars Ingebrigtsen
2022-09-23 15:45 ` Eli Zaretskii
2022-09-22 13:02 ` Gregory Heytings
2022-09-22 13:59 ` Eli Zaretskii
2021-10-24 22:14 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2021-10-24 22:28 ` bug#19776: 25.0.50; HTML rendering is very slow Lars Ingebrigtsen
2021-10-25 7:33 ` Andreas Schwab
2021-10-25 13:11 ` Lars Ingebrigtsen
2021-10-25 13:33 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-10-25 13:46 ` Andreas Schwab
2021-10-25 13:52 ` Lars Ingebrigtsen
2021-10-25 14:05 ` Lars Ingebrigtsen
2021-10-25 14:16 ` Eli Zaretskii
2021-10-25 14:25 ` Lars Ingebrigtsen
2021-10-25 14:31 ` Andreas Schwab
2021-10-25 14:36 ` Lars Ingebrigtsen
2021-10-25 14:48 ` Lars Ingebrigtsen
2021-10-25 14:32 ` Lars Ingebrigtsen
2021-10-25 14:00 ` Eli Zaretskii
2021-10-25 14:35 ` Andreas Schwab
2021-10-25 15:05 ` bug#19776: timerfd doesn't work when busy-looping Lars Ingebrigtsen
2021-10-25 15:59 ` Eli Zaretskii
2021-10-25 16:16 ` Lars Ingebrigtsen
2021-10-25 16:41 ` bug#19776: The hourglass Lars Ingebrigtsen
2021-10-25 16:51 ` Eli Zaretskii
2021-10-25 16:57 ` Lars Ingebrigtsen
2021-10-25 16:09 ` bug#19776: 25.0.50; HTML rendering is very slow Eli Zaretskii
2021-10-25 16:19 ` Lars Ingebrigtsen
2021-10-25 16:53 ` Eli Zaretskii
2021-10-25 17:01 ` Lars Ingebrigtsen
2021-10-25 17:07 ` Eli Zaretskii
2021-10-25 17:11 ` Andreas Schwab
2021-10-25 17:12 ` Eli Zaretskii
2021-10-25 17:52 ` Andreas Schwab
2021-10-25 18:25 ` Eli Zaretskii
2021-10-25 2:17 ` Richard Stallman
2021-10-25 13:10 ` Lars Ingebrigtsen
2021-10-27 12:59 ` Lars Ingebrigtsen
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