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From: jpff
Subject: (no subject)
Date: Thu, 07 Feb 2008 10:01:38 +0000
User-agent: Heirloom mailx 12.2 01/07/07

Date: Thu,  7 Feb 2008 10:01:38 +0000
Message-Id: <3895-Thu07Feb2008100138+0000-jpff@codemist.co.uk>
X-Mailer: emacs 22.1.1 (via feedmail 8 I)
BCC: jpff@codemist.co.uk
From: jpff <jpff@codemist.co.uk>
To: bug-gnu-emacs@gnu.org
Subject: More on RMAIL problem

I am running rmail-mode under gdb. So far it has been running for 45
minutes at over 90% CPU.  It seems to be in coding.c running the
function detect_coding_system.  This seems to be going through the
mail file character at a time, but not very fast!
src is currently 0xb48fe1f6
and src_end is 0xb4d89219
But sometime src seems to return to an earlier value when returning
from detect_coding_iso_2022 (just now 0xb01e9c41)

Have not understood the code but it looks like at least n^2 and my
mail file is 97Mb

Please, do I have to give up on emacs after 20 years?

PS o=in src/coding.c line 2535 there is a typo codig->coding

In GNU Emacs 22.1.1 (i586-suse-linux-gnu, GTK+ Version 2.12.0)
 of 2007-11-23 on dede
Windowing system distributor `The X.Org Foundation', version 11.0.70200000
configured using `configure  '--with-gcc' '--with-pop' '--without-hesiod' 
'--with-kerberos' '--with-kerberos5' '--with-leim' '--with-xim' 
'--with-system-malloc' '--prefix=/usr' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--localstatedir=/var' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--with-x' '--with-sound' '--with-xpm' '--with-jpeg' 
'--with-tiff' '--with-gif' '--with-png' '--with-x-toolkit=gtk' 
'--x-includes=/usr/include' '--x-libraries=/usr/lib:/usr/share/X11' 
'--build=i586-suse-linux-gnu' 'build_alias=i586-suse-linux-gnu' 'CC=gcc' 
'CFLAGS=-O2 -march=i586 -mtune=i686 -fmessage-length=0 -Wall 
-D_FORTIFY_SOURCE=2 -fstack-protector -g -pipe -fno-strict-aliasing      
-D_GNU_SOURCE   -Wno-pointer-sign       -Wno-unused-variable    
-Wno-unused-label  -DSYSTEM_PURESIZE_EXTRA=55000        

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: C/l

Minor modes in effect:
  auto-image-file-mode: t
  display-time-mode: t
  encoded-kbd-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:
* . c <return> <help-echo> <help-echo> <down-mouse-1> 
<mouse-1> C-v <down-mouse-1> <mouse-1> C-v C-v <help-echo> 
<down-mouse-1> <mouse-movement> <mouse-1> C-x C-f <backspace> 
<backspace> <backspace> <backspace> l s <tab> <backspace> 
i s p / m a i <tab> r m a i <tab> . e <tab> <return> 
C-s b a b y l C-s C-s C-s C-s C-s C-a C-v C-v C-v <down-mouse-1> 
<mouse-1> C-s C-w C-w C-w C-w C-s C-a <down-mouse-1> 
<mouse-movement> <mouse-1> <down-mouse-1> <mouse-1> 
C-v <down-mouse-1> <mouse-1> <down-mouse-1> <mouse-1> 
<down> <down> <down> <up> <up> <left> <left> <left> 
<left> <left> <left> <left> <left> <left> <down-mouse-1> 
<mouse-movement> <mouse-movement> <drag-mouse-1> C-x 
b <return> M-x g r e p <return> <help-echo> <down-mouse-2> 
<mouse-2> SPC * . c <return> <help-echo> <help-echo> 
<down-mouse-1> <mouse-2> <help-echo> <down-mouse-1> 
<mouse-1> C-s C-w C-w C-w C-s C-s C-s C-s C-a <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> C-x 1 <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> C-x 
C-x <down-mouse-1> <mouse-movement> <mouse-movement> 
<drag-mouse-1> M-v M-v M-v M-v M-v M-v M-v M-v <down-mouse-1> 
<mouse-1> <double-down-mouse-1> <mouse-movement> <mouse-movement> 
<double-drag-mouse-1> <down-mouse-1> <mouse-movement> 
<mouse-1> C-v <down-mouse-1> <mouse-1> C-v C-v C-v 
C-v <escape> < C-u 2 7 4 0 C-n <down> <down> <down> 
<down> <down> <down> <up> <up> <down> <up> <up> <up> 
<up> <up> <down> <down> <down> <down> <down> <down> 
<escape> C-b <down-mouse-1> <mouse-movement> <mouse-movement> 
<drag-mouse-1> M-m C-x k <return> M-m r e p o r <tab> 
C-x k <return> M-x r e p o <tab> r t - <tab> <retu

Recent messages:
Loading vc-cvs...done
Mark saved where search started [2 times]
Mark set
Loading cc-mode...done
Loading imenu...done
Mark saved where search started
Mark set
Auto save file for draft message exists; consider M-x mail-recover
Making completion list...
Loading emacsbug...done

==John ffitch

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