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[67.249.80.215]) by smtp.gmail.com with ESMTPSA id 193sm17460771qkj.1.2020.04.08.08.30.23 for <40384@debbugs.gnu.org> (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 08 Apr 2020 08:30:24 -0700 (PDT) In-Reply-To: <834ku1xd7g.fsf@gnu.org> X-Mailer: Microsoft Outlook 16.0 Content-Language: en-us Thread-Index: AQKo1kHc8TNpcpd69DkcKQrC1BdfAQJlhs6bAiLPS+ABn/GMFwF+HoDx X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:178142 Archived-At: Hello, None of the suggested fixes have any impact. I just did a clean reinstall of my OS (Windows 10 Enterprise 10.0.18363 Build 18363) and the issue is present still. Should we try to investigate the issue? I have another PC on which I am going to be reinstalling windows soon. I will check there and report back. (To see if it is hardware or software related or a combination of the two...) Best, Gennady On April 3, 2020 03:04:19 Eli Zaretskii wrote: >> From: >> Cc: <40384@debbugs.gnu.org> >> Date: Thu, 2 Apr 2020 18:29:07 -0400 >> >> By default the font that gets used is >> >> display: by this font (glyph code) >> >> uniscribe:-outline-Arial-normal-normal-normal-sans-20-*-*-*-p-*-iso8859-1 >> (#x03) > > That's the same font I get, but I see no slowdown. > > Thanks for the profile, it says that somehow redrawing even ASCII > characters (if you indeed did that with the comment in *scratch* > copied many times, as your recipe says) is somehow very expensive on > your system. > > Does it help to customize inhibit-compacting-font-caches to non-nil?