Subject: bug#4273: closed (Re: bug#12127: 24.1.50; ispell slow under Emacs.app)

From: [email-masked] (GNU bug Tracking System)
Date: Sun, 10 Feb 2013 01:38:07 +0000

Your bug report

#12127: flyspell-region / accept-process-output very slow

which was filed against the emacs,ns package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
12127: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12127
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#12127: 24.1.50; ispell slow under Emacs.app
From: Glenn Morris <[email-masked]>
To: [email-masked]
Date: Sat, 09 Feb 2013 20:37:11 -0500
List-Id: <debbugs-submit.debbugs.gnu.org>

Version: 24.3

Pat Rondon wrote:

> Apologies for the very long delay. It does in fact seem to be fixed.
[...]
> On Sun, Oct 14, 2012 at 2:40 PM, Jan Djärv <[email-masked]> wrote:
[...]
>> The NS-port does not use polling anymore.  Can you test if the current
>> approach seems like an improvement?

Subject: flyspell-region / accept-process-output very slow
From: David Reitter <[email-masked]>
To: Bug-Gnu-Emacs <[email-masked]>
Date: Thu, 27 Aug 2009 18:15:07 -0400

ackage: emacs,ns
X-Debbugs-Cc:  nathaniel Cunningham <[email-masked]>

`flyspell-region' is slow to the point that it is unusable.

Emacs -Q
M-x flyspell-buffer

This will visibly go through the buffer while checking it.  It takes  
about 6 seconds for the three lines, so it's impossible to use for any  
reasonable document.

Now, repeat the above process but during spell-checking, move the  
mouse around.  --> Finishes in acceptable time.

Some debugging reveals that `accept-process-output' seems to be the  
culprit.  Commenting out the `with-local-quit' expression in `flyspell- 
word'  makes things go fast again.  Giving it a `0` for the just-this- 
one argument should prevent it from running timers, but that doesn't  
help.

Given the mouse behavior, I think there's something seriously wrong  
with the event loop or the process output handling in Nextstep.
  \

In GNU Emacs 23.1.1 (i386-apple-darwin9.7.0, NS apple-appkit-949.46)
  of 2009-08-01 on braeburn.aquamacs.org
Windowing system distributor `Apple', version 10.3.1038
configured using `configure  '--with-ns' '--without-x''

Important settings:
   value of $LC_ALL: nil
   value of $LC_COLLATE: en_US.us-ascii
   value of $LC_CTYPE: en_US.us-ascii
   value of $LC_MESSAGES: en_US.us-ascii
   value of $LC_MONETARY: en_US.us-ascii
   value of $LC_NUMERIC: en_US.us-ascii
   value of $LC_TIME: en_US.us-ascii
   value of $LANG: de_DE.ISO8859-15
   value of $XMODIFIERS: nil
   locale-coding-system: us-ascii-unix
   default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
   tooltip-mode: t
   mouse-wheel-mode: t
   menu-bar-mode: t
   file-name-shadow-mode: t
   global-font-lock-mode: t
   font-lock-mode: t
   global-auto-composition-mode: t
   auto-composition-mode: t
   auto-encryption-mode: t
   auto-compression-mode: t
   line-number-mode: t
   transient-mark-mode: t

Recent input:
<up> <up> <up> <up> C-SPC <down> <down> <down> <escape>
x f l y s <tab> r e g <tab> <return> <up> <up> <up>
<down-mouse-1> <mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-movement> <drag-mouse-1> <escape>
x f l y s <tab> r e g <tab> <return> <escape> x <up>
<return> <down-mouse-1> <mouse-1> <menu-bar> <help-menu>
<send-emacs-bug-report>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Mark set
Starting new Ispell process [default] ...
Spell Checking completed. [3 times]