bug#8957: Slow file saves (7 seconds)

[Jon Doyle]

In a fresh installation of Emacs on a new Windows 7 machine, saving

files after editing takes a very long time.  For example, saving a 300KB

Latex source takes about 7 seconds pretty repeatedly.  The disk is

running, so there is no spinup time.  Editing the same file on my old,

slower Windows 7 machine (same speed disk, same init files, but probably

version 23.1 or 23.2) took less than a second, never long enough to

notice.  I saw some mentions of version control slowdowns, but I'm not

using such to my knowledge, and setting the switches mentioned in those

posts made no difference.   I did not see anything in the emacs bug list.

Thanks for any help you can offer on this.

Jon Doyle

In GNU Emacs 23.3.1 (i386-mingw-nt6.1.7601)

 of 2011-03-10 on 3249CTO

Windowing system distributor `Microsoft Corp.', version 6.1.7601

configured using `configure --with-gcc (4.5) --no-opt --cflags -Ic:/imagesupport/include'

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: ENU

  value of $XMODIFIERS: nil

  locale-coding-system: cp1252

  default enable-multibyte-characters: t

Major mode: LaTeX

Minor modes in effect:

  display-battery-mode: t

  display-time-mode: t

  tooltip-mode: t

  menu-bar-mode: t

  file-name-shadow-mode: t

  global-font-lock-mode: t

  font-lock-mode: t

  blink-cursor-mode: t

  auto-encryption-mode: t

  auto-compression-mode: t

  line-number-mode: t

  transient-mark-mode: t

Recent input:

C-v C-v C-l C-n C-k C-k <help-echo> C-k C-k C-n C-k 

C-k C-x C-s C-x C-b C-n C-p SPC C-x C-f <backspace> 

<backspace> p / d e <backspace> <backspace> w i c k 

<tab> i n f <tab> <return> C-u C-n C-u C-n C-u C-n 

C-n C-n C-n C-n C-n e C-s s y m m e t r i z i n g C-p 

C-p C-b C-b C-b SPC f o r SPC s o m e SPC $ \ a g e 

n t ' ' SPC \ i n SPC \ A g e n t s $ M-q C-x C-s M-x 

v e r s i o n <return> M-x r e p o r t SPC e m a c 

s SPC b u g <return>

Recent messages:

Loading c:/Program Files (x86)/emacs/site-lisp/auctex/style/amsmath.elc...done

Loading c:/Program Files (x86)/emacs/site-lisp/auctex/style/amstext.elc...done

Loading c:/Program Files (x86)/emacs/site-lisp/auctex/style/amsbsy.elc...done

Loading c:/Program Files (x86)/emacs/site-lisp/auctex/style/amsopn.elc...done

Loading c:/Program Files (x86)/emacs/site-lisp/auctex/style/article.elc...done

Applying style hooks... done

Mark saved where search started

Saving file d:/now/p/wicker/influence/influence_models.tex...

Wrote d:/now/p/wicker/influence/influence_models.tex

GNU Emacs 23.3.1 (i386-mingw-nt6.1.7601) of 2011-03-10 on 3249CTO

Load-path shadows:

d:/Admin/Configuration/emacs/ispell hides c:/Program Files (x86)/emacs/lisp/textmodes/ispell

Features:

(shadow sort mail-extr message ecomplete rfc822 mml mml-sec

password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231

rfc2047 rfc2045 qp ietf-drums nnheader gnus-util netrc time-date mm-util

mail-prsvr gmm-utils wid-edit mailheader canlock sha1 hex-util hashcash

mail-utils emacsbug texmathp multi-isearch preview prv-emacs byte-opt

warnings tex-buf noutline outline font-latex bytecomp byte-compile latex

easy-mmode tex-style tex advice help-fns advice-preload easymenu

latexenc dired regexp-opt ebuff-menu electric battery cus-start cus-load

edmacro kmacro ispell ediff-merg ediff-diff ediff-wind ediff-help

ediff-util ediff-mult ediff-init ediff mailabbrev time preview-latex

tex-site auto-loads tooltip ediff-hook vc-hooks lisp-float-type mwheel

dos-w32 disp-table ls-lisp w32-win w32-vars tool-bar dnd fontset image

fringe lisp-mode register page menu-bar rfn-eshadow timer select

scroll-bar mldrag mouse jit-lock font-lock syntax facemenu font-core

frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai

tai-viet lao korean japanese hebrew greek romanian slovak czech european

ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help

simple abbrev loaddefs button minibuffer faces cus-face files

text-properties overlay md5 base64 format env code-pages mule custom

widget hashtable-print-readable backquote make-network-process multi-tty

emacs)