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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: emacs rendering comparisson between emacs23 and emacs26.3
Date: Sun, 22 Mar 2020 18:58:30 +0200
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To: Amin Bandali <bandali@gnu.org>
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> From: Amin Bandali <bandali@gnu.org>
> Date: Sun, 22 Mar 2020 11:08:25 -0400
> 
> That is not to say I don't enjoy and appreciate useful new features in
> GNU Emacs, but rather that I think we should keep a close eye on the
> performance penalties accumulated over time and (continue) trying to
> minimize them as much as we can. :-)

Indeed, we should, and we do.  Several slowdowns in CC mode were
reported during the recent years, and at least some of them were
fixed.  Feel free to report more, preferably with profile data to show
the bottlenecks and test cases to use in making CC mode faster.

Thanks.