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Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%
From: |
Alan Mackenzie |
Subject: |
Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7% |
Date: |
Sat, 4 Sep 2021 15:43:40 +0000 |
Hello, Eli.
On Sat, Sep 04, 2021 at 18:36:32 +0300, Eli Zaretskii wrote:
> > Date: Sat, 4 Sep 2021 15:32:57 +0000
> > From: Alan Mackenzie <acm@muc.de>
> > Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
> > > Maybe to speed things up, another option is to grow the chunk size
> > > a bit.
> > Maybe. An advantage of a small chunk size is that fontifying a single
> > screen can be done with a maximum 499 bytes "inefficiency" off the end
> > of a screen. If we were to increase jit-lock-chunk-size to, say 2000,
> > more of the next screen would be getting fontified, perhaps wastefully.
> > I don't know how important this is. Maybe I should try it.
> > Indeed. With jit-lock-chunk-size at 2000, time-scroll on xdisp.c takes:
> > (current code): 16.4s
> > (new proposed code): 16.1s
> > .. This speed up may well be particular to CC Mode.
> > Let's try jit-lock-chunk-size at 8000:
> > (current code): 15.1s
> > (new proposed code): 15.1s
> > .. So, yes, it would seem a larger chunk size is advantageous for CC
> > Mode.
> How large (in lines and columns) is your window? The above numbers
> are only meaningful with the window size.
I'm running in a window with 65 lines and 118 columns.
--
Alan Mackenzie (Nuremberg, Germany).
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, (continued)
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/03
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/03
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Stefan Monnier, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%,
Alan Mackenzie <=
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/04
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/06
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/06
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/06
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/06
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Alan Mackenzie, 2021/09/18
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, Eli Zaretskii, 2021/09/18
- Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%, andrés ramírez, 2021/09/06