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#29737: 27.0.50; pixel-scroll-mode is laggy Date: Sat, 16 Dec 2017 20:30:32 +0200 Message-ID: <83vah6r0dz.fsf@gnu.org> References: Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1513449075 13358 195.159.176.226 (16 Dec 2017 18:31:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 16 Dec 2017 18:31:15 +0000 (UTC) Cc: 29737@debbugs.gnu.org To: Valentin Ignatyev Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Dec 16 19:31:07 2017 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 1eQHEo-0002pg-Lr for geb-bug-gnu-emacs@m.gmane.org; Sat, 16 Dec 2017 19:31:06 +0100 Original-Received: from localhost ([::1]:51699 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eQHEv-0005Zp-Ea for geb-bug-gnu-emacs@m.gmane.org; Sat, 16 Dec 2017 13:31:13 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59621) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eQHEp-0005Ze-MB for bug-gnu-emacs@gnu.org; Sat, 16 Dec 2017 13:31:08 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eQHEk-0006U3-O4 for bug-gnu-emacs@gnu.org; Sat, 16 Dec 2017 13:31:07 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:57191) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eQHEk-0006Tj-Ke for bug-gnu-emacs@gnu.org; Sat, 16 Dec 2017 13:31:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eQHEk-000816-Cr for bug-gnu-emacs@gnu.org; Sat, 16 Dec 2017 13:31:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 16 Dec 2017 18:31:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 29737 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 29737-submit@debbugs.gnu.org id=B29737.151344905230800 (code B ref 29737); Sat, 16 Dec 2017 18:31:02 +0000 Original-Received: (at 29737) by debbugs.gnu.org; 16 Dec 2017 18:30:52 +0000 Original-Received: from localhost ([127.0.0.1]:37639 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eQHEZ-00080i-Sk for submit@debbugs.gnu.org; Sat, 16 Dec 2017 13:30:52 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:40349) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eQHEX-00080V-P1 for 29737@debbugs.gnu.org; Sat, 16 Dec 2017 13:30:50 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eQHEN-00068r-Gr for 29737@debbugs.gnu.org; Sat, 16 Dec 2017 13:30:44 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:37259) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eQHEN-00068g-DZ; Sat, 16 Dec 2017 13:30:39 -0500 Original-Received: from [176.228.60.248] (port=3810 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1eQHEL-0006wD-J6; Sat, 16 Dec 2017 13:30:39 -0500 In-reply-to: (message from Valentin Ignatyev on Sun, 17 Dec 2017 03:55:34 +1000) 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:141174 Archived-At: > From: Valentin Ignatyev > Date: Sun, 17 Dec 2017 03:55:34 +1000 > > Hi! I've tried new feature `pixel-scroll-mode` on both emacs-26 and on > master branches. While I see that scrolling became pixel-wise indeed, it > is also very laggy. CPU blows up to 100% and ui hangs and freezes. It > works ok if I scroll slowly though. It happens with all my plugins and > customizations and if I run emacs with -Q flag. In what major mode does this happen? Does the problem still happen if you switch to Fundamental mode? Also, what happens if you hold the Ctrl key while scrolling? What if you set mouse-wheel-progressive-speed to nil?