animate incredibly slow compared to 21.3

[Peter Seibel]

Symptoms:

Invoke, for instance,

  M-x animate-birthday-present

in 21.3 (and the recent 21.4) the animation is smooth. In a CVS emacs
built aftre xasserts were turned back off by default, it's flickery
and slow and sometimes stalls entirely before completing the animation.

Obviously animate is just a bit of fun but I wonder if it doesn't
indicate an underlying performance regression of something. (Also
SLIME, the new Common Lisp integration package happens to use animate
during it's startup and folks really like it so much so that when
someone took it out there was a hue and cry. But it looks terrible in
CVS emacsen.)

-Peter


In GNU Emacs 22.0.50.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2005-03-08 on xeon
Distributor `The XFree86 Project, Inc', version 11.0.40200000
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_US.iso885915
  locale-coding-system: iso-latin-9
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-undo-mode: t
  erc-autojoin-mode: t
  erc-button-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-fill-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  mouse-wheel-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t

Recent input:
s l i m e <return> C-a C-y C-k <return> y <return> 
C-x b * G r <tab> <return> M-> C-p C-p C-p C-p C-p 
C-p C-p C-p C-p C-p C-p C-p C-p C-p M-g C-p <return> 
<return> C-s a n i m a t e C-a C-s a n i m a t e a 
C-a M-> <up> <up> <up> <up> <up> <return> <down> SPC 
<down> SPC <down> SPC q M-x b u g <tab> <M-backspace> 
e m <tab> a c <tab> g <tab> <backspace> b <tab> <M-backspace> 
<M-backspace> r e p <tab> o <tab> r t <tab> <retur
n>

Recent messages:
Opening nntp server on news.gmane.org...done
Retrieving newsgroup: nntp+news.gmane.org:gmane.emacs.devel...
Fetching headers for nntp+news.gmane.org:gmane.emacs.devel...
Error during redisplay: (error Recursive `require' for feature `code-pages') [9 
times]
Fetching headers for nntp+news.gmane.org:gmane.emacs.devel...done
Generating summary...done
Mark saved where search started [2 times]
Mark set
Making completion list... [3 times]
Loading emacsbug...done