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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Emacs taking long long time for M-x memory-report
Date: Fri, 02 Apr 2021 21:53:11 +0300
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To: Jean Louis <bugs@gnu.support>
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In-Reply-To: <YGc9IPQ6+Q511ijl@protected.localdomain> (message from Jean Louis
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> Date: Fri, 2 Apr 2021 18:49:52 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: emacs-devel@gnu.org
> 
> > Profile it.  (And it isn't necessarily "a problem".)
> 
> It looks like my read-from-buffer which edits buffer only is taking much.

What kind of profile did you run? cpu or memory?