slowness (redisplay?) with column-number-mode and toolbar

slowness (redisplay?) with column-number-mode and toolbar

[David Reitter]

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I am experiencing an incredible slowness in the screen redisplay  
(fast typing results in a noticeable and annoying delay when updating  
the screen) when both of the following conditions are met:


- column-number-mode is active
- tool-bar-mode is active / the tool-bar is being displayed in the  
frame that I'm typing in.

This occurs in an Emacs 22.1 with no further options, compiled for  
Carbon and run on OS X.


I've received several bug reports on the Aquamacs mailing list  
regarding this. We have column-number-mode on by default and also  
display the tool-bar.

I've experimented with `redisplay-dont-pause' - setting it to t helps  
a bit, but Emacs is still very sluggish.

This problem does not occur on an Aquamacs Emacs compiled on 2007-04-24.



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slowness (redisplay?) with column-number-mode and toolbar

[YAMAMOTO Mitsuharu]

>>>>> On Thu, 7 Jun 2007 15:41:01 +0100, David Reitter <david.reitter@gmail.com> said:

> I am experiencing an incredible slowness in the screen redisplay (fast
> typing results in a noticeable and annoying delay when updating the
> screen) when both of the following conditions are met:

> - column-number-mode is active
> - tool-bar-mode is active / the tool-bar is being displayed in the
> - frame that I'm typing in.

> This occurs in an Emacs 22.1 with no further options, compiled for
> Carbon and run on OS X.

I can't reproduce it with Emacs 22.1/Mac OS X 10.3.9, and I think I
could have found it if it were the case, because there was another
`column-number-mode'-related problem (not related to Carbon) that I
was debugging just before the release.

Did you really test it with Emacs 22.1?  According to another report,
you seems to be using 22.1.50, not a release version.

> I've received several bug reports on the Aquamacs mailing list
> regarding this. We have column-number-mode on by default and also
> display the tool-bar.

It seems that Aquamacs Emacs 1.0 also uses Emacs 22.1.50.  If so (and
1.0 is intended to be an official release version of Aquamacs Emacs),
I'd say it's a ridiculous idea not to use the release version of Emacs
for it.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Re: slowness (redisplay?) with column-number-mode and toolbar

[David Reitter]

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On 8 Jun 2007, at 03:43, YAMAMOTO Mitsuharu wrote:

> Did you really test it with Emacs 22.1?  According to another report,
> you seems to be using 22.1.50, not a release version.

The releases are meant to be built from the EMACS_22_BASE branch  
(CVS). We could use the released 22.1 version next time, but I was  
hoping for the branch to be relatively stable and contain valuable  
bug fixes.

Does the trunk contain such a redisplay problem?

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Re: slowness (redisplay?) with column-number-mode and toolbar

[YAMAMOTO Mitsuharu]

>>>>> On Fri, 8 Jun 2007 06:35:36 +0100, David Reitter <david.reitter@gmail.com> said:

> On 8 Jun 2007, at 03:43, YAMAMOTO Mitsuharu wrote:
>> Did you really test it with Emacs 22.1?  According to another
>> report, you seems to be using 22.1.50, not a release version.

> The releases are meant to be built from the EMACS_22_BASE branch
> (CVS). We could use the released 22.1 version next time, but I was
> hoping for the branch to be relatively stable and contain valuable
> bug fixes.

I don't find the current HEAD of the EMACS_22_BASE branch is unstable,
but still I think the release version (or the EMACS_22_1 tag) was most
appropriate for Aquamacs Emacs 1.0 to respect and utilize developers'
efforts toward the release.  (It's up to you to decide, of course.)

> Does the trunk contain such a redisplay problem?

Did you use the trunk for Aquamacs Emacs 1.0, not even the
EMACS_22_BASE branch?

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Re: slowness (redisplay?) with column-number-mode and toolbar

[Richard Stallman]

    Did you really test it with Emacs 22.1?  According to another report,
    you seems to be using 22.1.50, not a release version.

If he's found a bug in the CVS version, we still want to fix it!
(But we need to know precisely what version of the sources it is.

Re: slowness (redisplay?) with column-number-mode and toolbar

[YAMAMOTO Mitsuharu]

>>>>> On Fri, 08 Jun 2007 10:24:29 -0400, Richard Stallman <rms@gnu.org> said:

>     Did you really test it with Emacs 22.1?  According to another
>     report, you seems to be using 22.1.50, not a release version.

> If he's found a bug in the CVS version, we still want to fix it!
> (But we need to know precisely what version of the sources it is.

Yes, and if it is the CVS version, then emacs-pretest-bug@gnu.org
would be more appropriate place to go.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Re: slowness (redisplay?) with column-number-mode and toolbar

[Richard Stallman]

    - column-number-mode is active
    - tool-bar-mode is active / the tool-bar is being displayed in the  
    frame that I'm typing in.

    This occurs in an Emacs 22.1 with no further options, compiled for  
    Carbon and run on OS X.

Can you run it under GDB and stop it
to see where it is spending the time?