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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Reliable after-change-functions (via: Using incremental parsing
 in Emacs)
Date: Sat, 04 Apr 2020 17:41:58 +0300
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Cc: acm@muc.de, casouri@gmail.com, emacs-devel@gnu.org,
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To: Andrea Corallo <akrl@sdf.org>
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In-Reply-To: <xjf5zefibhm.fsf@sdf.org> (message from Andrea Corallo on Sat, 04
 Apr 2020 14:14:45 +0000)
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> From: Andrea Corallo <akrl@sdf.org>
> Cc: Alan Mackenzie <acm@muc.de>, dgutov@yandex.ru, casouri@gmail.com,
>         monnier@iro.umontreal.ca, emacs-devel@gnu.org
> Date: Sat, 04 Apr 2020 14:14:45 +0000
> 
> Be careful that -Og produce considerably slower code than -O2.  For
> instance if I'm not wrong it disable completely inlining that is one of
> the most rewarding optimizations.

Yes, I know.  But the difference in performance between -Og and -O2
cannot be 8- or 9-fold, it should be somewhere around 50% to 70%.