From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#25706: 26.0.50; Slow C file fontification Date: Mon, 30 Nov 2020 12:26:18 +0100 Message-ID: <878sajaxwl.fsf@gnus.org> References: <87inoe2brv.fsf@the-damned> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17806"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 25706@debbugs.gnu.org To: Sujith Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Nov 30 12:28:29 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1kjhM4-0004Wu-W5 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Nov 2020 12:28:29 +0100 Original-Received: from localhost ([::1]:56542 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kjhM3-000546-Vp for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Nov 2020 06:28:28 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38066) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kjhKg-0003rv-Mb for bug-gnu-emacs@gnu.org; Mon, 30 Nov 2020 06:27:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:42242) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kjhKg-0007zA-0g; Mon, 30 Nov 2020 06:27:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kjhKf-0003TL-Rt; Mon, 30 Nov 2020 06:27:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org, bug-cc-mode@gnu.org Resent-Date: Mon, 30 Nov 2020 11:27:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25706 X-GNU-PR-Package: emacs,cc-mode Original-Received: via spool by 25706-submit@debbugs.gnu.org id=B25706.160673559313192 (code B ref 25706); Mon, 30 Nov 2020 11:27:01 +0000 Original-Received: (at 25706) by debbugs.gnu.org; 30 Nov 2020 11:26:33 +0000 Original-Received: from localhost ([127.0.0.1]:53786 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kjhKD-0003Qh-D0 for submit@debbugs.gnu.org; Mon, 30 Nov 2020 06:26:33 -0500 Original-Received: from quimby.gnus.org ([95.216.78.240]:35114) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kjhKB-0003Q0-J9 for 25706@debbugs.gnu.org; Mon, 30 Nov 2020 06:26:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=LAtFtkHJDpjLFtyC7+920EzUsxmPsq6KnVvQSunniKc=; b=oUcvZ7jRgTxyLSr2UJe4pcy3aa gEp0Uokmg2uOqUJRiyVOjwiLS2mADsMy/82Gm/4BHNDLFTm1wdCgpq4EV8l4fEK3GFP5UH+/rsTkR DRUkcyBEpIodh3zz40Vix0SVw4g0Jot/o+4kAwo4iMvsbFdMRcpIL993KRbWwEyEVIvQ=; Original-Received: from cm-84.212.202.86.getinternet.no ([84.212.202.86] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kjhJz-0008F9-IF; Mon, 30 Nov 2020 12:26:25 +0100 X-Now-Playing: Yukihiro Takahashi's _Saravah!_: "Elastic Dummy" In-Reply-To: <87inoe2brv.fsf@the-damned> (Sujith's message of "Mon, 13 Feb 2017 23:50:20 +0530") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:194614 Archived-At: Sujith writes: > On a machine that is not very high-powered, opening some C files > and trying to edit/view them is very slow. > > For example: > https://raw.githubusercontent.com/qca/qcamain_open_hal_public/master/hal/ar9300/osprey_reg_map_macro.h > > This is a large file and filled with macros. > Is there any way to view this without disabling font-lock entirely ? (This bug report unfortunately got no response at the time.) I tried reproducing this on a pretty new laptop, and opening the file in question (with your settings) took less than a second with Emacs 28. You say "very slow", but not what kind of time scale you mean -- one second or one minute or something. Are you still seeing this issue in more recent versions of Emacs? -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no