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font-lock has become far too slow

From: John Wiegley
Subject: font-lock has become far too slow
Date: Tue, 27 Apr 2004 15:31:11 -0700
User-agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3.50 (darwin)

Starting very recently, font-lock (using jit-lock) has become so slow
that Emacs can no longer keep up with my typing -- on a modern, 1.25
GHz PowerBook G4.  I haven't profiled things yet, so does anyone know
what was added that might make things this slow?  I compiled with -O3
-fomit-frame-pointer, but still am forced to turn off font-lock mode.


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