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bug#19776: 25.0.50; HTML rendering is very slow
From: |
Eli Zaretskii |
Subject: |
bug#19776: 25.0.50; HTML rendering is very slow |
Date: |
Sun, 24 Oct 2021 22:24:00 +0300 |
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: Eli Zaretskii <eliz@gnu.org>, stefan@marxist.se, rms@gnu.org,
> 19776@debbugs.gnu.org
> Date: Sun, 24 Oct 2021 21:10:57 +0200
>
> I've now implemented this... but testing this with a busy loop shows
> that the atimer doesn't fire (or at least that the callback doesn't get
> called) in all situations.
>
> If I move the mouse pointer, for instance, then it's called. If I don't
> do anything, and eval this:
>
> (with-delayed-message 0.5 "Yes"
> (dotimes (i 1000000000)
> (+ i 2)))
>
> the atimer callback isn't called. Anybody know what's up with that?
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.
- bug#19776: 25.0.50; HTML rendering is very slow, (continued)
- bug#19776: 25.0.50; HTML rendering is very slow, Eli Zaretskii, 2021/10/23
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Eli Zaretskii, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Eli Zaretskii, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Stefan Monnier, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow,
Eli Zaretskii <=
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Stefan Kangas, 2021/10/24
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/25
- bug#19776: 25.0.50; HTML rendering is very slow, Eli Zaretskii, 2021/10/25
- bug#19776: 25.0.50; HTML rendering is very slow, Lars Ingebrigtsen, 2021/10/25
- bug#19776: 25.0.50; HTML rendering is very slow, Stefan Kangas, 2021/10/29