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From: Ken Goldman <kgoldman@us.ibm.com>
Newsgroups: gmane.emacs.help
Subject: How to debug high CPU usage -> hang
Date: Tue, 10 Jan 2023 09:58:58 -0500
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I'm editing in ReST mode, Windows 11, emacs 28.1.

Occasionally, I want to jump (search, etc.) and the CPU usage jumps and 
emacs hangs. I suspect a font-lock issue.

I fixed one by bisecting the text, then changing a table type.  Now I 
have another.

Is there a general way to debug?