unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Alan Mackenzie <acm@muc.de>
To: martin rudalics <rudalics@gmx.at>, Eli Zaretskii <eliz@gnu.org>,
	John Wiegley <johnw@gnu.org>,
	emacs-devel@gnu.org
Subject: 33% speed up in CC Mode scrolling.
Date: Wed, 15 Jun 2016 22:20:15 +0000	[thread overview]
Message-ID: <20160615222015.GA4813@acm.fritz.box> (raw)

Hello Martin, Eli, John, and Emacs.

I've just committed b76385c05076f0adaf7cf89d0ed95dfe5e8570e0 to the
master branch.  This takes some code out of CC Mode's font-locking's
hottest loop and puts it back in again in a place where is gets called
less often.

This speeds up CC Mode's scrolling (as measured on our favourite file,
xdisp.c) by about one third.  There may be scope for further optimisation
of this code.

This is a substantial and worthwhile, although not spectacular, speed up
of CC Mode.

-- 
Alan Mackenzie (Nuremberg, Germany).



             reply	other threads:[~2016-06-15 22:20 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-15 22:20 Alan Mackenzie [this message]
2016-06-16  0:41 ` 33% speed up in CC Mode scrolling John Wiegley
2016-06-16  1:02 ` Clément Pit--Claudel
2016-06-16 23:15   ` Richard Stallman
2016-06-17 15:38     ` Alan Mackenzie
2016-06-19 17:21       ` Richard Stallman
2016-06-20  0:44         ` Stefan Monnier
2016-06-20 23:04           ` Richard Stallman
2016-06-21  0:47             ` Stefan Monnier
2016-06-22  6:34               ` Richard Stallman
2016-06-27  6:31 ` martin rudalics
2016-06-27 12:49   ` Alan Mackenzie
2016-06-27 16:10     ` martin rudalics
2016-06-27 17:28       ` martin rudalics
2016-06-27 18:44         ` Alan Mackenzie
2016-06-28  8:23           ` martin rudalics
2016-06-28 10:27             ` Alan Mackenzie
2016-06-27 16:28   ` Eli Zaretskii
2016-06-27 16:57     ` martin rudalics
2016-06-27 19:31       ` Eli Zaretskii
2016-06-28  8:23         ` martin rudalics
2016-06-28  9:18           ` Alan Mackenzie

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=20160615222015.GA4813@acm.fritz.box \
    --to=acm@muc.de \
    --cc=eliz@gnu.org \
    --cc=emacs-devel@gnu.org \
    --cc=johnw@gnu.org \
    --cc=rudalics@gmx.at \
    /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).