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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Default of jit-lock-stealth-time
Date: Tue, 27 Feb 2007 02:39:15 -0500
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    > The motive for stealth fontification was to avoid delays when moving to
    > another part of the file.  Is fontification now sufficiently fast
    > that such delays are not much of an annoyance any more?

    No, we are definitely not there yet, IMO.

Would you please tell us more?  What sort of machine are you using,
and how bad are these delays?  We need to compare them with the delays
caused by stealth fontification.