From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.devel Subject: Re: Debouncing slow mode line constructs (was: Emacs design and architecture. How about copy-on-write?) Date: Fri, 22 Sep 2023 13:19:42 +0000 Message-ID: <87fs36wdjl.fsf@localhost> References: <83y1h1axtq.fsf@gnu.org> <87sf79rq5o.fsf@yahoo.com> <83fs38c2yv.fsf@gnu.org> <83o7hw9ee1.fsf@gnu.org> <87il84q845.fsf@yahoo.com> <83il849bx6.fsf@gnu.org> <87a5tfri8c.fsf@yahoo.com> <878r8z27cs.fsf@localhost> <44e98df7-f683-ac07-e644-40757f1d26f9@gutov.dev> <87msxfzts6.fsf@localhost> <7b0c07f5-88c8-4f2c-6ac6-a6112c884f32@gutov.dev> <87il83zsg1.fsf@localhost> <87fs37zrjx.fsf@localhost> <83ttrn8woc.fsf@gnu.org> <87h6nmy098.fsf@localhost> <83h6nm76mv.fsf@gnu.org> <87r0mqweba.fsf@localhost> <83zg1e5pd8.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24816"; mail-complaints-to="usenet@ciao.gmane.io" Cc: dmitry@gutov.dev, luangruo@yahoo.com, acm@muc.de, incal@dataswamp.org, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Sep 22 15:19:25 2023 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 1qjg44-0006Db-Vr for ged-emacs-devel@m.gmane-mx.org; Fri, 22 Sep 2023 15:19:24 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qjg3F-0007CG-UV; Fri, 22 Sep 2023 09:18:34 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjg3E-0007By-Ke for emacs-devel@gnu.org; Fri, 22 Sep 2023 09:18:32 -0400 Original-Received: from mout02.posteo.de ([185.67.36.66]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjg3C-0004zX-L0 for emacs-devel@gnu.org; Fri, 22 Sep 2023 09:18:32 -0400 Original-Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id E32BB240105 for ; Fri, 22 Sep 2023 15:18:27 +0200 (CEST) Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4RsXry6b4Zz6tn4; Fri, 22 Sep 2023 15:18:26 +0200 (CEST) In-Reply-To: <83zg1e5pd8.fsf@gnu.org> Received-SPF: pass client-ip=185.67.36.66; envelope-from=yantar92@posteo.net; helo=mout02.posteo.de X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:310968 Archived-At: Eli Zaretskii writes: >> redisplay optimizations may decide to not refresh the mode-line when >> typing. > > If they do, it's a bug. You are right. Typing appears to trigger mode-line redisplay. What I thought is a redisplay optimization is different - `vc-mode' variable used to display VC status is not updated on every redisplay. Instead, it is modified when visiting a file and when saving a file. The end result is the same - VC status is not always up-to-date. Similar approach is often used by other well-optimized mode-line constructs, leading to sometimes-outdated mode-line. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at