unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
From: Alan Mackenzie <acm@muc.de>
To: "Mattias Engdegård" <mattiase@acm.org>
Cc: acm@muc.de, Lars Ingebrigtsen <larsi@gnus.org>, 25706@debbugs.gnu.org
Subject: bug#25706: 26.0.50; Slow C file fontification
Date: Mon, 30 Nov 2020 18:30:16 +0000	[thread overview]
Message-ID: <X8U6OJLZRpnQFDxY__41666.0003874981$1606761181$gmane$org@ACM> (raw)
In-Reply-To: <55C404DC-1C29-449F-9A49-B20EDFFCFCEA@acm.org>

Hello, Mattias.

On Mon, Nov 30, 2020 at 13:46:30 +0100, Mattias Engdegård wrote:
> >> https://raw.githubusercontent.com/qca/qcamain_open_hal_public/master/hal/ar9300/osprey_reg_map_macro.h

> > I tried reproducing this on a pretty new laptop, and opening the file
> > in question (with your settings) took less than a second with Emacs
> > 28.

> My lappy is less new but not really that slow -- compared to the
> hardware of the original reporter it's a speed demon -- but opening the
> file takes almost 4 s here. More importantly, scrolling through the
> file is painfully slow.

Hah!  I just tried it, all the way through the file, and it took me
3568.429881811142 seconds, i.e. all of an hour bar 32 seconds.

My machine is no way slow, being a first generation AMD Ryzen from 2017.

> Alan, do you have a diagnose?

Other than what I told you last post (lack of braces), not yet, but I'm
going to take the first tenth of the OP's file (which is 4 Mb) for
testing on.

-- 
Alan Mackenzie (Nuremberg, Germany).





      parent reply	other threads:[~2020-11-30 18:30 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-13 18:20 bug#25706: 26.0.50; Slow C file fontification Sujith
2020-11-30 11:26 ` Lars Ingebrigtsen
2020-11-30 11:37   ` Lars Ingebrigtsen
2020-11-30 12:46 ` Mattias Engdegård
2020-11-30 12:49   ` Lars Ingebrigtsen
2020-11-30 16:27   ` Eli Zaretskii
2020-11-30 16:38   ` Alan Mackenzie
2020-11-30 16:53     ` Mattias Engdegård
2020-11-30 17:04       ` Mattias Engdegård
2020-12-01  5:48         ` Ravine Var
2020-12-01 13:34           ` Mattias Engdegård
2020-12-01  9:29         ` Alan Mackenzie
2020-12-01  9:44           ` martin rudalics
2020-12-01 10:07             ` Alan Mackenzie
2020-12-01  9:21       ` Alan Mackenzie
2020-12-01 12:03         ` Mattias Engdegård
2020-12-01 12:57           ` Alan Mackenzie
2020-12-01 14:07             ` Mattias Engdegård
2020-12-01 15:27               ` Alan Mackenzie
2020-12-01 18:59                 ` Mattias Engdegård
2020-12-02 10:15                   ` Alan Mackenzie
     [not found]                   ` <X8dpQeGaDD1w3kXX@ACM>
2020-12-02 15:06                     ` Mattias Engdegård
2020-12-03 10:48                       ` Alan Mackenzie
2020-12-03 14:03                         ` Mattias Engdegård
2020-12-04 21:04                           ` Alan Mackenzie
     [not found]                           ` <X8qkcokfZGbaK5A2@ACM>
2020-12-05 15:20                             ` Mattias Engdegård
2020-12-08 18:42                               ` Alan Mackenzie
     [not found]                               ` <X8/JG7eD7SfkEimH@ACM>
2020-12-08 19:32                                 ` Mattias Engdegård
2020-12-09  7:31                                 ` Ravine Var
2020-12-09  7:47                                   ` Ravine Var
2020-12-10  8:08                                     ` Alan Mackenzie
2020-12-09 18:46                                   ` Alan Mackenzie
     [not found]                                   ` <X9Ebn7hKnG/vpDcZ@ACM>
2020-12-09 20:04                                     ` Eli Zaretskii
2020-12-09 20:32                                       ` Alan Mackenzie
2020-12-10 17:02                                     ` Ravine Var
2020-12-10 20:02                                       ` Alan Mackenzie
2020-12-11 10:55                                         ` Ravine Var
2020-12-12 15:34                                           ` Alan Mackenzie
     [not found]                                           ` <X9TjCeydJaE2mpK8@ACM>
2020-12-14  7:20                                             ` Ravine Var
2020-12-14 11:44                                               ` Alan Mackenzie
2020-12-15  4:01                                                 ` Ravine Var
2020-12-15 12:27                                                   ` Alan Mackenzie
2020-12-09 17:00                                 ` Mattias Engdegård
2020-12-10 12:26                                   ` Alan Mackenzie
2020-11-30 18:30   ` Alan Mackenzie [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='X8U6OJLZRpnQFDxY__41666.0003874981$1606761181$gmane$org@ACM' \
    --to=acm@muc.de \
    --cc=25706@debbugs.gnu.org \
    --cc=larsi@gnus.org \
    --cc=mattiase@acm.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).