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 10:45:08 -0400 Message-ID: References: <20200403174757.GA8266@ACM> <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> <4c5ebff1-39ab-3d63-6118-42befc93b862@yandex.ru> <6914ebb2-2dfa-efdc-1181-c42259219bca@yandex.ru> <83zhbjna0q.fsf@gnu.org> <903b7d31-bd0e-e2dc-a981-d090ed959ccb@yandex.ru> <83pncfmpme.fsf@gnu.org> <94ee576f-ff26-cad9-3e22-b75299ff9cdb@yandex.ru> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="87719"; 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, acm@muc.de, Eli Zaretskii To: Dmitry Gutov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Apr 10 16:46:22 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 1jMuvG-000MhR-79 for ged-emacs-devel@m.gmane-mx.org; Fri, 10 Apr 2020 16:46:22 +0200 Original-Received: from localhost ([::1]:35374 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMuvF-0007En-66 for ged-emacs-devel@m.gmane-mx.org; Fri, 10 Apr 2020 10:46:21 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53138) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMuuA-0005PA-Md for emacs-devel@gnu.org; Fri, 10 Apr 2020 10:45:15 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jMuu9-00064c-Jx for emacs-devel@gnu.org; Fri, 10 Apr 2020 10:45:14 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:61227) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jMuu8-00060S-2G; Fri, 10 Apr 2020 10:45:12 -0400 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 3CB2A44FF19; Fri, 10 Apr 2020 10:45:11 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id C905A44FF13; Fri, 10 Apr 2020 10:45:09 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1586529909; bh=yDHTHQ7BLZsKlmWj35gEDWxf7DCpO61eD6b6Zg4SaJE=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=P5YZPrwWZU/0UyYbaHSyq8g2lkJ1FY4KpMEhmLmSzAh9yJw4M6nHvAoiknqzjE0A3 lZvsN7mxO3eVXOrAgK0bqc0ZQb2YW1+ZNzpmOCz3qY8CYP6EUP/KdoNyNQxlw245kj L7MSXOQX2NgT2zmJ7Pu9inlNk6MKOy7CrG0b7UYBi56Sgr58r9Dx1z21wqSCrIA1Yt 5hHSaCvXT6d0kp2c+qfuaMc7mfFktvqvZBvfzoK7qpZwB2XGEDLqWOcRr/yms1dCSm wCkrNZwmcG3Sr9P1CIDeH2hQwMVbzdOJ2Ie2U4X08vVIYa9KSLy0BKwV/Av7NIorrH XrNLyqpEcb6tg== Original-Received: from alfajor (unknown [104.247.241.114]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 2A9CB120676; Fri, 10 Apr 2020 10:45:09 -0400 (EDT) In-Reply-To: <94ee576f-ff26-cad9-3e22-b75299ff9cdb@yandex.ru> (Dmitry Gutov's message of "Fri, 10 Apr 2020 17:34:57 +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:246763 Archived-At: > It *does* flicker afterwards (e.g. 0.5 sec after I depress C-v), because > that's what deferred jit-lock does: it applies syntax highlighting with > a delay. So I type, wait 0.5sec, and syntax highlighting arrives. It's > a less-aggravating kind of flicker because of its laid-back pace, but I > still wouldn't call it acceptable user experience. And in theory it should be possible to make something like (setq jit-lock-defer-mode 0) avoid this flicker because the last repetition of `C-v` is executed with `input-pending-p` returning nil, so we should be able to fully jit-lock right away with no deferral at that point. Stefan