From: Alan Mackenzie <acm@muc.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: johnw@gnu.org, emacs-devel@gnu.org
Subject: Re: Permission requested to merge branch comment-cache into master.
Date: Sat, 12 Mar 2016 11:50:21 +0000 [thread overview]
Message-ID: <20160312115021.GB2572@acm.fritz.box> (raw)
In-Reply-To: <83a8m4gd7p.fsf@gnu.org>
Hello, Eli.
On Sat, Mar 12, 2016 at 01:14:34PM +0200, Eli Zaretskii wrote:
> > Date: Sat, 12 Mar 2016 10:08:43 +0000
> > Cc: johnw@gnu.org, emacs-devel@gnu.org
> > From: Alan Mackenzie <acm@muc.de>
> > > The slow performance of CC mode is an annoying misfeature, IMO, which
> > > we should strive to fix in Emacs 25.1.
> > I honestly don't think this change is going to speed up CC Mode very
> > much at all.
> I don't understand: the original complaint for config.h was about an
> unbearably slow response to a simple editing command. Are you saying
> that these changes will not speed up that use case?
Sorry, yes, in that particular case the change will speed it up
dramatically. That case is (i) When there is a paren in column zero in
a comment; (ii) There is a lot of syntactic whitespace and no "normal"
code between that paren and the spot being edited. I see this more as a
bug fix than a performance enhancement.
But for CC Mode in general, I don't see a dramatic speed up happening
because of this change.
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2016-03-12 11:50 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-12 0:28 Permission requested to merge branch comment-cache into master Alan Mackenzie
2016-03-12 7:32 ` Eli Zaretskii
2016-03-12 10:08 ` Alan Mackenzie
2016-03-12 11:14 ` Eli Zaretskii
2016-03-12 11:50 ` Alan Mackenzie [this message]
2016-03-12 12:31 ` Eli Zaretskii
2016-03-12 13:11 ` Alan Mackenzie
2016-03-12 21:38 ` John Wiegley
2016-03-12 23:17 ` Alan Mackenzie
2016-03-13 0:02 ` John Wiegley
2016-03-13 15:20 ` Alan Mackenzie
2016-03-13 16:04 ` Clément Pit--Claudel
2016-03-13 16:12 ` Dmitry Gutov
2016-03-13 19:12 ` Alan Mackenzie
2016-03-13 22:27 ` Stefan Monnier
2016-03-13 22:52 ` Alan Mackenzie
2016-03-13 23:38 ` Clément Pit--Claudel
2016-03-14 0:20 ` Stefan Monnier
2016-03-14 6:32 ` Andreas Röhler
2016-03-14 11:27 ` Alan Mackenzie
2016-03-13 17:07 ` John Wiegley
2016-03-13 19:04 ` Alan Mackenzie
2016-03-14 0:25 ` Dmitry Gutov
2016-03-14 1:11 ` Stefan Monnier
2016-03-14 13:28 ` Alan Mackenzie
2016-03-14 15:58 ` Stefan Monnier
2016-03-13 18:03 ` Eli Zaretskii
2016-03-12 13:23 ` Dmitry Gutov
2016-03-12 14:06 ` Alan Mackenzie
2016-03-12 21:39 ` John Wiegley
2016-03-13 17:22 ` Stefan Monnier
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