bug#19947: 25.0.50; slow: Fontifying *Python-font-lock*...

[Sam Steingold]

Typing in *Python* buffer takes forever because I get the

Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)

message after every single keystroke.

In GNU Emacs 25.0.50.2 (x86_64-apple-darwin14.1.0, NS appkit-1344.72 Version 
10.10.2 (Build 14C109))
 of 2015-02-23 on sds-MacBook-Pro.home
Repository revision: ed7005c0e974a43c9b63d6f5d8ef6bd4099ba449
Windowing system distributor `Apple', version 10.3.1344
Configured using:
 `configure --with-ns'

Configured features:
IMAGEMAGICK ACL LIBXML2 ZLIB

Important settings:
  value of $LANG: C
  locale-coding-system: utf-8-unix

Major mode: Messages

Minor modes in effect:
  diff-auto-refine-mode: t
  rcirc-track-minor-mode: t
  which-function-mode: t
  url-handler-mode: t
  show-paren-mode: t
  desktop-save-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-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-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t

Recent messages:
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Fontifying  *Python-font-lock*... (regexps...........)
Mark set
Scanning for dabbrevs...done

Load-path shadows:
None found.

Features:
(shadow sort bbdb-message mailalias cookie1 mail-extr gnus-msg gnus-art
mm-uu mml2015 mm-view mml-smime smime dig mailcap gnus-sum gnus-group
gnus-undo gnus-start gnus-cloud nnimap nnmail mail-source utf7 netrc
nnoo parse-time gnus-spec gnus-int gnus-range gnus-win emacsbug sendmail
cl-indent apropos ispell log-edit message rfc822 mml mml-sec mm-decode
mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums
gmm-utils mailheader pcvs-util dabbrev misearch multi-isearch skeleton
inf-lisp url-expand url-util url-methods disp-table network-stream nsm
starttls tls cal-move cal-x mule-util cal-china cal-bahai cal-islam
cal-julian holidays hol-loaddefs cal-iso cal-hebrew lunar solar cal-dst
appt diary-lib diary-loaddefs cal-menu calendar cal-loaddefs tramp-cache
tramp-sh tramp tramp-compat tramp-loaddefs trampver eieio-opt speedbar
sb-image ezimage dframe find-func help-mode debug score-mode js cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine
bug-reference add-log pig-mode make-mode view conf-mode sh-script smie
scala-mode2 scala-mode2-imenu scala-mode2-sbt scala-mode2-map
scala-mode2-fontlock scala-mode2-indent scala-mode2-paragraph
scala-mode2-syntax scala-mode2-lib dired-aux vc-dir ewoc vc vc-git
diff-mode easy-mmode python json vc-dispatcher vc-hg auto-complete
edmacro kmacro popup package epg-config dired warnings midnight gnus
gnus-ems nnheader mail-utils wid-edit bbdb-mua bbdb-com crm mailabbrev
bbdb-loaddefs bbdb bbdb-site timezone rcirc server which-func imenu
url-handlers url-parse auth-source cl-macs eieio byte-opt bytecomp
byte-compile cl-extra seq cconv eieio-core cl-generic pcase gnus-util
mm-util mail-prsvr password-cache url-vars paren help-at-pt desktop
frameset cus-start cus-load ido ess-toolbar ess-mouse mouseme thingatpt
browse-url ess-menu ess-swv ess-noweb ess-noweb-font-lock-mode
ess-bugs-l essd-els ess-sas-d ess-sas-l ess-sas-a shell pcomplete
ess-sta-d ess-sta-l cc-vars cc-defs make-regexp ess-sp6-d ess-sp3-d
ess-julia ess-r-d compile ess-tracebug format-spec ess-roxy advice
help-fns hideshow ess-help ess-developer ess-r-args ess-s-l ess ess-inf
comint ansi-color ring ess-mode ess-noweb-mode ess-utils ess-custom
executable easymenu ess-compat ess-site cl gv cl-loaddefs cl-lib
time-date tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel ns-win tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment elisp-mode lisp-mode prog-mode register
page menu-bar rfn-eshadow timer select scroll-bar 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 minibuffer
cl-preloaded nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
cocoa ns multi-tty emacs)

Memory information:
((conses 16 617013 33533)
 (symbols 48 69166 0)
 (miscs 40 8178 61)
 (strings 32 195593 13843)
 (string-bytes 1 5014193)
 (vectors 16 53320)
 (vector-slots 8 859268 8666)
 (floats 8 933 1170)
 (intervals 56 30060 60)
 (buffers 976 108))

-- 
Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1344
http://www.childpsy.net/ http://islamexposedonline.com http://dhimmi.org
http://truepeace.org http://openvotingconsortium.org
MS Windows vs IBM OS/2: Why marketing matters more than technology...