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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: cc-mode fontification feels random
Date: Sat, 12 Jun 2021 17:14:29 +0300
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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In-Reply-To: <jwvtum3uron.fsf-monnier+emacs@gnu.org> (message from Stefan
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> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: dancol@dancol.org,  acm@muc.de,  rudalics@gmx.at,  rms@gnu.org,
>   emacs-devel@gnu.org
> Date: Sat, 12 Jun 2021 09:44:10 -0400
> 
> > Well, using -Og _is_ optimizing, albeit less than -O2 does.
> 
> Ah, I see what you mean.  For me the first step of optimizing is to
> disable the extra checks, whereas this was built with
> 
>     --enable-checking --enable-check-lisp-object-type

I think the effect of these on redisplay speed is exaggerated.