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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: The Emacs master is much slower than the emacs-27 branch.
Date: Fri, 04 Dec 2020 13:45:02 +0200
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To: Stephen Berman <stephen.berman@gmx.net>
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In-Reply-To: <87czzpsyqn.fsf@gmx.net> (message from Stephen Berman on Fri, 04
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> From: Stephen Berman <stephen.berman@gmx.net>
> Date: Fri, 04 Dec 2020 10:32:16 +0100
> Cc: emacs-devel@gnu.org
> 
> As noted above, I build both master and emacs-27 with CFLAGS='-Og -g3'.
> Given that, is such a difference still expected?

No.  But if you see this consistently, please produce and post the
profile of each of the versions, and let's take it from there.