From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#25148: 25.1; Slow scrolling with emacs 25.1 and Windows 10. Date: Fri, 09 Dec 2016 18:43:50 +0200 Message-ID: <83h96dgiih.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1481301856 3104 195.159.176.226 (9 Dec 2016 16:44:16 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 9 Dec 2016 16:44:16 +0000 (UTC) Cc: 25148@debbugs.gnu.org To: Kristiyan Kanchev Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 09 17:44:10 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cFOHJ-00006y-Uf for geb-bug-gnu-emacs@m.gmane.org; Fri, 09 Dec 2016 17:44:10 +0100 Original-Received: from localhost ([::1]:47621 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cFOHO-0001fW-2E for geb-bug-gnu-emacs@m.gmane.org; Fri, 09 Dec 2016 11:44:14 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:53046) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cFOHG-0001Zq-8Q for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 11:44:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cFOHC-0003eH-6s for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 11:44:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:49052) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cFOHC-0003eB-3P for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 11:44:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cFOHB-0006ar-RN for bug-gnu-emacs@gnu.org; Fri, 09 Dec 2016 11:44:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 09 Dec 2016 16:44:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25148 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 25148-submit@debbugs.gnu.org id=B25148.148130181325299 (code B ref 25148); Fri, 09 Dec 2016 16:44:01 +0000 Original-Received: (at 25148) by debbugs.gnu.org; 9 Dec 2016 16:43:33 +0000 Original-Received: from localhost ([127.0.0.1]:36218 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cFOGj-0006Zy-Lm for submit@debbugs.gnu.org; Fri, 09 Dec 2016 11:43:33 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:33748) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cFOGi-0006Zm-7f for 25148@debbugs.gnu.org; Fri, 09 Dec 2016 11:43:32 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cFOGY-0003aX-Vm for 25148@debbugs.gnu.org; Fri, 09 Dec 2016 11:43:27 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:42291) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cFOGY-0003aS-T0; Fri, 09 Dec 2016 11:43:22 -0500 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:4118 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1cFOGY-0004w5-5z; Fri, 09 Dec 2016 11:43:22 -0500 In-reply-to: (message from Kristiyan Kanchev on Fri, 9 Dec 2016 11:22:08 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:126776 Archived-At: > From: Kristiyan Kanchev > Date: Fri, 9 Dec 2016 11:22:08 +0200 > > When I decided to upgrade to the new version of Emacs - 25.1 I started > getting very slow text scrolling. With all my packages loaded and in > Python mode emacs is completelty unusable because there is a about half > a second delay after every down arrow press. > > Moreover, I then tried emacs -Q and opened my init.el. Pressed on the > down arrow key and holding it caused sluggish scrolling when the cursor > reaches somewhere around the half of the init.el. > > I have also run the profiler while in emacs -Q and init.el: > > - command-execute 2337 96% > - call-interactively 2337 96% > - funcall-interactively 2311 95% > - next-line 1991 82% > - line-move 1991 82% > - line-move-partial 1356 56% Sounds like some issue with fonts. Does it help to set inhibit-compacting-font-caches to a non-nil value?