From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Scrolling commands and skipping redisplay, was: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Fri, 10 Apr 2020 10:29:07 -0400 Message-ID: References: <20200403174757.GA8266@ACM> <83blo7v68b.fsf@gnu.org> <1845d7aa-9ae4-3d95-6a30-c7b1d8d8adec@gmx.at> <83a73qt6zs.fsf@gnu.org> <97c4254e-ff43-8402-3645-f713c408c245@gmx.at> <83y2r9syby.fsf@gnu.org> <20200405195753.GG5049@ACM> <542b48ba-4dfa-820f-ba50-4b147ab6d8e2@yandex.ru> <0a5f70aa-4985-8f8d-81d6-6ac4a60a94f9@yandex.ru> <838sj8sphk.fsf@gnu.org> <834ktwsmfw.fsf@gnu.org> <83imibqsmm.fsf@gnu.org> <478c2aab-a5fc-61c2-02e2-2d9846b95273@yandex.ru> <83v9m9nltx.fsf@gnu.org> <83tv1rn8fx.fsf@gnu.org> <83o8rzmpfm.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="16588"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: rms@gnu.org, emacs-devel@gnu.org, rudalics@gmx.at, rrandresf@gmail.com, dgutov@yandex.ru, acm@muc.de To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Apr 10 16:29:54 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jMufJ-0004EJ-VI for ged-emacs-devel@m.gmane-mx.org; Fri, 10 Apr 2020 16:29:53 +0200 Original-Received: from localhost ([::1]:35028 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMufJ-0006Fq-1i for ged-emacs-devel@m.gmane-mx.org; Fri, 10 Apr 2020 10:29:53 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:50582) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMuen-0005mT-7N for emacs-devel@gnu.org; Fri, 10 Apr 2020 10:29:22 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jMuel-0005p9-Md for emacs-devel@gnu.org; Fri, 10 Apr 2020 10:29:20 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:41693) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jMuej-0005nC-QM; Fri, 10 Apr 2020 10:29:17 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 90D5E100E88; Fri, 10 Apr 2020 10:29:16 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id D3C24100E35; Fri, 10 Apr 2020 10:29:14 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1586528954; bh=E/4B9Nb46MdO6+WvrG+OsiPXghf3bONbqGWiojYjsNE=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=Xui52AVUYy4ZqykI1o+yKgBQaqHXTXdTPgAN7JPvMyVRNUotjdLRpswc92M01mf+P oaWD7q0J6hGewjF6x8CPW7Cmk4SWYceJNccPHclRzc6byk2EeHiQYcndU+JtDt8Ry1 Y0yTrLXbZgAfW06QDx/nvCAFrVRT2pSPPDa40jQWgo31dQhZfgTzTb030Dj0LT5wZB JFKWCelJj35MgjdQ5LU80HEHmZ+l5REFhPsAFM7HBgN/kksI5wmD4dBF9slstQ00K5 p863bAYvPUWFJ9AwhzQu32z3FBHUTg5+Gdzhaddsd09CG6YhcOvmLgjNA8pmmNHLEW BCblAtR2YpnIQ== Original-Received: from alfajor (unknown [104.247.241.114]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 14286120749; Fri, 10 Apr 2020 10:29:14 -0400 (EDT) In-Reply-To: <83o8rzmpfm.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 10 Apr 2020 16:38:05 +0300") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 132.204.25.50 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:246756 Archived-At: >> > Depends on what you mean by "precision". They might very well miss >> > some parts of the buffer entirely, i.e. never see them on display. >> But that happens regardless of whether the scroll is computed correctly, >> because redisplay itself is skipped. > It isn't skipped here if I use jit-lock-defer-time. I was talking about `fast-but-imprecise-scrolling`, not about `jit-lock-defer-time` (I thought that's what your use of "precision" implied). Stefan