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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Extend gdb to filter registers
Date: Sat, 25 Jan 2020 19:10:59 +0200
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Cc: rudalics@gmx.at, casouri@gmail.com, emacs-devel@gnu.org,
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To: John Yates <john@yates-sheets.org>
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 (message from John Yates on Sat, 25 Jan 2020 09:33:34 -0500)
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> From: John Yates <john@yates-sheets.org>
> Date: Sat, 25 Jan 2020 09:33:34 -0500
> Cc: Yuan Fu <casouri@gmail.com>, martin rudalics <rudalics@gmx.at>, Juri Linkov <juri@linkov.net>, 
> 	Emacs developers <emacs-devel@gnu.org>, Stefan Monnier <monnier@iro.umontreal.ca>
> 
> On my 3840x2160 emacs with a small font
> a maximal window is 480 characters wide.
> My split-width-threshold is 160 characters.
> When gdb-mi creates its 6 windows each
> is nearly 240 and hence clearly more than
> my split-width-threshold.  As I visit different
> source files each of gdb-mi's dedicated
> windows gets split sprinkling my source
> windows all over the screen.

OK, then I think the changes discussed here will solve your problem.

Thanks.