From: Alan Mackenzie <acm@muc.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org
Subject: Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%
Date: Sat, 18 Sep 2021 11:37:32 +0000 [thread overview]
Message-ID: <YUXPfKvV00C+xaJt@ACM> (raw)
In-Reply-To: <83a6kpqzje.fsf@gnu.org>
Hello, Eli.
On Mon, Sep 06, 2021 at 22:23:01 +0300, Eli Zaretskii wrote:
> > Date: Mon, 6 Sep 2021 19:08:45 +0000
> > Cc: monnier@iro.umontreal.ca, emacs-devel@gnu.org
> > From: Alan Mackenzie <acm@muc.de>
> > (It is notable that redisplay is quite a bit slower in X at 54 lines
> > than on a Linux console at 65 lines.)
> That's expected: TTY display skips some stuff that is only needed on
> GUI frames, so it's faster.
> > So, based on these timings, I would suggest a new jit-lock-chunk-size of
> > 1500.
> Agreed. Please be sure to include a reference to this message in the
> commit log message, when you install the change.
> Thanks.
Just as a postscript, the 7% speed advantage from reworked jit code we
were talking about has largely disappeared with the increase in
jit-chunk-size from 500 to 1500. The speed advantage is now around 1% -
2%, almost, but not quite, lost in the noise.
I therefore propose not installing any of these changes for Emacs-28. I
don't think the slight speed increase would justify the increased
complexity.
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2021-09-18 11:37 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 17:33 bug-reference-prog-mode slows down CC Mode's scrolling by ~7% Alan Mackenzie
2021-09-01 17:44 ` Eli Zaretskii
2021-09-01 17:55 ` Alan Mackenzie
2021-09-01 18:01 ` Eli Zaretskii
2021-09-01 18:20 ` Alan Mackenzie
2021-09-01 18:28 ` Eli Zaretskii
2021-09-01 19:19 ` Alan Mackenzie
2021-09-01 20:59 ` Stefan Monnier
2021-09-02 6:26 ` Eli Zaretskii
2021-09-02 16:57 ` Alan Mackenzie
2021-09-02 18:46 ` Stefan Monnier
2021-09-02 19:24 ` Alan Mackenzie
2021-09-02 21:08 ` Alan Mackenzie
2021-09-03 6:16 ` Eli Zaretskii
2021-09-03 12:30 ` Stefan Monnier
2021-09-03 12:38 ` Eli Zaretskii
2021-09-03 22:25 ` Stefan Monnier
2021-09-04 6:13 ` Eli Zaretskii
2021-09-04 13:36 ` Stefan Monnier
2021-09-04 13:55 ` Eli Zaretskii
2021-09-04 14:44 ` Stefan Monnier
2021-09-04 14:56 ` Eli Zaretskii
2021-09-04 15:55 ` Stefan Monnier
2021-09-04 16:12 ` Eli Zaretskii
2021-09-04 16:24 ` Stefan Monnier
2021-09-04 16:28 ` Eli Zaretskii
2021-09-04 16:40 ` Stefan Monnier
2021-09-03 6:10 ` Eli Zaretskii
2021-09-03 10:47 ` Alan Mackenzie
2021-09-03 11:24 ` Eli Zaretskii
2021-09-03 16:15 ` Alan Mackenzie
2021-09-03 12:27 ` Stefan Monnier
2021-09-03 12:19 ` Stefan Monnier
2021-09-03 12:35 ` Eli Zaretskii
2021-09-03 16:52 ` Alan Mackenzie
2021-09-03 20:51 ` Alan Mackenzie
2021-09-04 6:09 ` Eli Zaretskii
2021-09-04 14:50 ` Alan Mackenzie
2021-09-04 15:00 ` Stefan Monnier
2021-09-04 15:32 ` Alan Mackenzie
2021-09-04 15:36 ` Eli Zaretskii
2021-09-04 15:43 ` Alan Mackenzie
2021-09-04 15:48 ` Eli Zaretskii
2021-09-04 16:05 ` Alan Mackenzie
2021-09-04 16:15 ` Eli Zaretskii
2021-09-06 10:46 ` Alan Mackenzie
2021-09-06 11:10 ` Eli Zaretskii
2021-09-06 19:08 ` Alan Mackenzie
2021-09-06 19:23 ` Eli Zaretskii
2021-09-18 11:37 ` Alan Mackenzie [this message]
2021-09-18 11:59 ` Eli Zaretskii
2021-09-06 21:59 ` andrés ramírez
2021-09-07 19:47 ` Alan Mackenzie
2021-09-07 17:57 ` andrés ramírez
2021-09-06 13:24 ` Stefan Monnier
2021-09-04 16:06 ` Stefan Monnier
2021-09-04 16:23 ` Eli Zaretskii
2021-09-04 16:39 ` Stefan Monnier
2021-09-04 17:19 ` Eli Zaretskii
2021-09-04 17:47 ` Stefan Monnier
2021-09-04 18:10 ` Eli Zaretskii
2021-09-04 18:40 ` Stefan Monnier
2021-09-11 12:49 ` Eli Zaretskii
2021-09-11 17:04 ` Stefan Monnier
2021-09-11 17:17 ` Eli Zaretskii
2021-09-11 18:00 ` Stefan Monnier
2021-09-11 18:16 ` Eli Zaretskii
2021-09-11 19:55 ` Stefan Monnier
2021-09-12 3:51 ` Eli Zaretskii
2021-09-12 16:41 ` Stefan Monnier
2021-09-12 16:53 ` Eli Zaretskii
2021-09-12 17:41 ` Stefan Monnier
2021-09-12 17:55 ` Eli Zaretskii
2021-09-12 21:11 ` Stefan Monnier
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