From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.bugs Subject: bug#20352: Factor 2 slow down of font-locking in c-mode Date: Mon, 16 May 2016 10:28:57 -0700 Organization: UCLA Computer Science Department Message-ID: <925dda81-89b0-6c55-2d61-9080e763475b@cs.ucla.edu> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1463419864 15950 80.91.229.3 (16 May 2016 17:31:04 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 16 May 2016 17:31:04 +0000 (UTC) Cc: 20352-done@debbugs.gnu.org, Stefan Monnier To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon May 16 19:30:53 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1b2MLj-0006Sy-OH for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 May 2016 19:30:35 +0200 Original-Received: from localhost ([::1]:45274 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2MLj-0000da-7M for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 May 2016 13:30:35 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44736) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2MLJ-0008GX-R8 for bug-gnu-emacs@gnu.org; Mon, 16 May 2016 13:30:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b2MLI-0006Hd-Sc for bug-gnu-emacs@gnu.org; Mon, 16 May 2016 13:30:09 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:41782) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b2MLE-0006B0-FH; Mon, 16 May 2016 13:30:04 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1b2MLD-0005aU-4U; Mon, 16 May 2016 13:30:03 -0400 In-Reply-To: Resent-From: Paul Eggert Original-Sender: "Debbugs-submit" Resent-To: bug-gnu-emacs@gnu.org, bug-cc-mode@gnu.org Resent-Date: Mon, 16 May 2016 17:30:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 20352 X-GNU-PR-Package: emacs,cc-mode X-GNU-PR-Keywords: Mail-Followup-To: 20352@debbugs.gnu.org, eggert@cs.ucla.edu, monnier@IRO.UMontreal.CA Original-Received: via spool by 20352-done@debbugs.gnu.org id=D20352.146341974921375 (code D ref 20352); Mon, 16 May 2016 17:30:02 +0000 Original-Received: (at 20352-done) by debbugs.gnu.org; 16 May 2016 17:29:09 +0000 Original-Received: from localhost ([127.0.0.1]:54117 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b2MKK-0005Yh-Pf for submit@debbugs.gnu.org; Mon, 16 May 2016 13:29:08 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:47900) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1b2MKJ-0005Y8-Ce for 20352-done@debbugs.gnu.org; Mon, 16 May 2016 13:29:08 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 44EA41612E4; Mon, 16 May 2016 10:28:58 -0700 (PDT) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id jqpVTC12zZnJ; Mon, 16 May 2016 10:28:57 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 9B5181612E5; Mon, 16 May 2016 10:28:57 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ccq5eSAtUoHV; Mon, 16 May 2016 10:28:57 -0700 (PDT) Original-Received: from penguin.cs.ucla.edu (Penguin.CS.UCLA.EDU [131.179.64.200]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 8145A1612E4; Mon, 16 May 2016 10:28:57 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:118297 Archived-At: I just now ran Stefan's benchmark on emacs-25 (commit 9ca5dbf947a7421d37b3e2d2bc6b8d2c9218bc65) and on my platform (Fedora 23 x86-64) Emacs 25 is now a bit faster than Emacs 24.5, as the benchmark took about 29 s on Emacs 24.5 and about 27 s on Emacs 25. I used the Emacs 25 src/xdisp.c in both benchmarks. Alan, I guess you fixed the performance problem at some point (thanks!). As it's listed as a bug blocking Emacs 25, I'm closing the bug report now.