bad redrawing performance

[Neal Becker]

On Saturday 03 February 2007 10:06 am, Stephen J. Turnbull wrote:
> Neal Becker writes:
>  > I'm playing with dxpc (differential x compression).  I find that xemacs
>  > (21.5.27) behaves terribly.  For example, M-x shell, then run say, 'ps
>  > aux' redraws over and over.
>
> Please submit a full bug report.  For starters, there are at least
> three different display engines (Xlib, Xft, and GTK+) available on X,
> so a copy of Installation would be useful.  Presence of widgets and
> dialogs can affect redisplay, too.  It's very complex.
>
> It would also be nice to know *what* is being redrawn, exactly.
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uname -a: Linux nbecker4 2.6.18-1.2869.fc6 #1 SMP Wed Dec 20 14:51:34 EST 2006 x86_64 x86_64 x86_64 GNU/Linux

./configure '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--with-system-packages=/usr/share/xemacs' '--without-msw' '--with-mule' '--with-clash-detection' '--with-database=no' '--without-ldap' '--without-postgresql' '--with-mail-locking=lockf' '--with-pop' '--without-hesiod' '--with-pdump' '--with-debug' '--with-error-checking=none' '--with-docdir=/usr/lib64/xemacs-21.5-b27/doc' '--with-xft=all' '--with-athena=next' '--with-menubars=lucid' '--with-widgets=athena' '--with-dialogs=athena' '--with-scrollbars=lucid' '--with-xim=xlib' '--without-wnn' 'CFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fno-strict-aliasing' 'build_alias=x86_64-redhat-linux-gnu' 'host_alias=x86_64-redhat-linux-gnu' 'target_alias=x86_64-redhat-linux-gnu'


XEmacs 21.5-b27 "fiddleheads"  configured for `x86_64-redhat-linux'.

Compilation Environment and Installation Defaults:
  Source code location:              /home/nbecker/RPM/BUILD/xemacs-21.5.27
  Installation prefix:               /usr
  Operating system description file: `s/linux.h'
  Not using any machine description file
  Compiler version:                  gcc (GCC) 4.1.1 20070105 (Red Hat 4.1.1-51)
    - GCC specs file:                specs.
    - Compiler command:              gcc   -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts -Wpacked -Wunused-parameter -g  -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fno-strict-aliasing
  libc version:                      glibc-2.5-10.fc6
glibc-2.5-10.fc6
  Relocating allocator for buffers:  no
  GNU version of malloc:             yes
    - Using Doug Lea's new malloc from the GNU C Library.

Window System:
  Compiling in support for the X window system:
    - X Windows headers location:                 
    - X Windows libraries location:               /usr/lib64
    - Handling WM_COMMAND properly.
    - Using fontconfig to manage fonts.
    - Compiling in support for Xft antialiased fonts (EXPERIMENTAL).
  Compiling in support for the Athena widget set:
    - Athena headers location:                    X11/neXtaw
    - Athena library to link:                     neXtaw
  Using Lucid menubars.
    - Using Xft to render antialiased fonts in menubars.
      WARNING: This feature will be replaced with a face.
  Using Lucid scrollbars.
  Using Athena dialog boxes.
  Using Athena native widgets.
    - Using Xft to render antialiased fonts in tab controls.
      WARNING: This feature will be replaced with a face.
    - Using Xft to render antialiased fonts in progress bars.
      WARNING: This feature will be replaced with a face.
      WARNING: This feature not yet implemented; setting ignored.

TTY:
  Compiling in support for ncurses.
  Compiling in support for GPM (General Purpose Mouse).

Images:
  Compiling in support for GIF  images (builtin).
  Compiling in support for XPM  images.
  Compiling in support for PNG  images.
  Compiling in support for JPEG images.
  Compiling in support for TIFF images.
  Compiling in support for X-Face message headers.

Sound:
  Compiling in support for sound (native).
  Compiling in support for ALSA (Advanced Linux Sound Architecture).

Databases:

Internationalization:
  Compiling in support for Mule (multi-lingual Emacs).
  Compiling in support for XIM (X11R5+ I18N input method).
    - Using raw Xlib to provide XIM support.
  Compiling in support for Canna on Mule.

Mail:
  Compiling in support for POP mail retrieval.
  Compiling in support for "lockf" mail spool file locking method.

Other Features:
  Inhibiting IPv6 canonicalization at startup.
  Compiling in support for dynamic shared object modules.
  Using the new GC mark algorithms (KKCC).
  WARNING: ---------------------------------------------------------
  WARNING: The new algorithms are experimental. They are enabled by
  WARNING: default for this release. Use `--disable-kkcc' to
  WARNING: turn it off.
  WARNING: ---------------------------------------------------------
  Using the new portable dumper.
  Dumping into executable.
  Compiling in support for extra debugging code.