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Article #411

Emacs runs slower under GDB 4.6

#411
From: Jim Blandy
Date: Wed, 02 Sep 1992 23:18
28 lines
1493 bytes
Regarding my previous message which was summarized by:
>Emacs 18.58 runs *much* slower under GDB 4.6 than under GDB 4.5.  I
>can outtype Emacs running under GDB 4.6, but it runs at a normal speed
>under GDB 4.5.

Perhaps it will be helpful to say that the speed problem only occurs
when using X windows.  If I start Emacs so that it uses the termcap
interface to the outside world, its speed is acceptable.  For example,
suppose your display is named pogo.cs.oberlin.edu:0.0:

pogo$ gdb-4.6 -n xemacs
GDB is free software and you are welcome to distribute copies of it
 under certain conditions; type "show copying" to see the conditions.
There is absolutely no warranty for GDB; type "show warranty" for details.
GDB 4.6, Copyright 1992 Free Software Foundation, Inc...
(gdb) run -nw -q
Starting program: /u/src/emacs/19.0/src/xemacs -nw -q

<emacs runs fine>

Program exited normally.
(gdb) run -display pogo.cs.oberlin.edu:0.0 -q
Starting program: /u/src/emacs/19.0/src/xemacs -display pogo.cs.oberlin.edu:0.0 -q

<emacs runs real slow>

Program exited normally.
(gdb)
Technical Details
Message-ID: <9209030718.AA19830@occs.cs.oberlin.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!occs.cs.oberlin.edu!jimb

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Newsgroups: gnu.gdb.bug
Path: arc1-ca.pugleaf.net!sparky!uunet!cis.ohio-state.edu!occs.cs.oberlin.edu!jimb
From: jimb@occs.cs.oberlin.edu (Jim Blandy)
Subject: Emacs runs slower under GDB 4.6
Message-ID: <9209030718.AA19830@occs.cs.oberlin.edu>
Sender: gnulists@ai.mit.edu
Organization: GNUs Not Usenet
Distribution: gnu
Date: Wed, 2 Sep 1992 23:18:31 GMT
Approved: bug-gdb@prep.ai.mit.edu
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