From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings via "Emacs development discussions." Newsgroups: gmane.emacs.devel Subject: Re: Modernize frame-title-format: "%b - GNU Emacs" Date: Mon, 31 Aug 2020 14:52:48 +0000 Message-ID: References: <83y2lux5hm.fsf@gnu.org> Reply-To: Gregory Heytings Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="38176"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Alpine 2.22 (NEB 394 2020-01-19) Cc: Eli Zaretskii , emacs-devel@gnu.org To: Stefan Kangas Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Aug 31 17:53:48 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 1kCm7w-0009pa-4N for ged-emacs-devel@m.gmane-mx.org; Mon, 31 Aug 2020 17:53:48 +0200 Original-Received: from localhost ([::1]:33700 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCm7v-00031x-6e for ged-emacs-devel@m.gmane-mx.org; Mon, 31 Aug 2020 11:53:47 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:57674) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCm7B-00029N-0R for emacs-devel@gnu.org; Mon, 31 Aug 2020 11:53:01 -0400 Original-Received: from mx.sdf.org ([205.166.94.24]:59651) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCm79-0003zf-7I; Mon, 31 Aug 2020 11:53:00 -0400 Original-Received: from sdf.org (IDENT:smmsp@faeroes.freeshell.org [205.166.94.9]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 07VFqqgV005105 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Mon, 31 Aug 2020 15:52:53 GMT Original-Received: (from ghe@localhost) by sdf.org (8.15.2/8.12.8/Submit) id 07VEqwBu000194; Mon, 31 Aug 2020 14:52:58 GMT In-Reply-To: Received-SPF: pass client-ip=205.166.94.24; envelope-from=ghe@sdf.org; helo=mx.sdf.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/31 11:52:56 X-ACL-Warn: Detected OS = ??? X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-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: 2.1.23 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:254447 Archived-At: > >> The display engine calls the function which produces the frame's title >> very frequently. You have just made redisplay much slower due to this >> call (abbreviate-file-name is a large and complex function, and you >> call Lisp on top of that), and caused most redisplay cycles prfoduce >> more garbage. Is it really worth it? > > Thanks, I didn't know it was called very frequently. I think it's most > definitely not worth slowing down redisplay. We should probably replace > it with the "%b" we had before. > I'm not sure, but I think using `buffer-file-truename' (as I did in my proposal) would eliminate the problems Eli mentioned. It is a (buffer-local) variable, and it is set only once when a buffer is created.