From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Richard Stallman Newsgroups: gmane.emacs.devel Subject: Re: emacs rendering comparisson between emacs23 and emacs26.3 Date: Sun, 05 Apr 2020 22:36:20 -0400 Message-ID: References: <86tv2h2vww.fsf@gmail.com> <20200322123818.GB32470@ACM> <87eetk5swm.fsf@gnu.org> <20200326193128.GC14092@ACM> <86d08y4zsx.fsf@gmail.com> <83sghs7qdz.fsf@gnu.org> <83h7y63sjj.fsf@gnu.org> <834ku43c61.fsf@gnu.org> <83k12zz6ds.fsf@gnu.org> <054393f3-3873-ab6e-b325-0eca354d8838@gmx.at> Reply-To: rms@gnu.org Content-Type: text/plain; charset=Utf-8 Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="52754"; mail-complaints-to="usenet@ciao.gmane.io" Cc: acm@muc.de, eliz@gnu.org, rrandresf@gmail.com, emacs-devel@gnu.org To: martin rudalics Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Apr 06 04:37:14 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 1jLHdS-000Dej-Q4 for ged-emacs-devel@m.gmane-mx.org; Mon, 06 Apr 2020 04:37:14 +0200 Original-Received: from localhost ([::1]:53900 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLHdR-0008Eu-Rr for ged-emacs-devel@m.gmane-mx.org; Sun, 05 Apr 2020 22:37:13 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58715) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jLHcc-000729-Ve for emacs-devel@gnu.org; Sun, 05 Apr 2020 22:36:24 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:49156) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jLHcc-0003C0-CP; Sun, 05 Apr 2020 22:36:22 -0400 Original-Received: from rms by fencepost.gnu.org with local (Exim 4.82) (envelope-from ) id 1jLHca-00058w-8F; Sun, 05 Apr 2020 22:36:20 -0400 In-Reply-To: <054393f3-3873-ab6e-b325-0eca354d8838@gmx.at> (message from martin rudalics on Fri, 3 Apr 2020 08:59:54 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:246502 Archived-At: [[[ To any NSA and FBI agents reading my email: please consider ]]] [[[ whether defending the US Constitution against all enemies, ]]] [[[ foreign or domestic, requires you to follow Snowden's example. ]]] > Recent Emacsen either ignore that variable or silently reset it to nil > internally so it doesn't get into their way. Their progmodes either > always scan an entire buffer from its beginning or use some elaborate, > fragile techniques to find such a top level position. Moreover, our > underlying mechanism for syntax highlighting always marks the entire > rest of a buffer as dirty after every single editing change. This has > the consequence that that entire part has to be continuously rescanned > when some of it is shown in another window. Does anyone disagree with this specific factual claim? > The basic slowness of Emacs over the past years is a direct consequence > of that policy. Does anyone disagree with this general claim? > So since you earlier asked for "a switch to turn off the changes" then > my answer is that such a switch already exists but has been deactivated. If those claims are true, I suggest reactivating it. Why impose the fast=machine mode on everyone? -- Dr Richard Stallman Chief GNUisance of the GNU Project (https://gnu.org) Founder, Free Software Foundation (https://fsf.org) Internet Hall-of-Famer (https://internethalloffame.org)