From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Juanma Barranquero Newsgroups: gmane.emacs.devel Subject: A significant slowdown calling font-lock-fontify-buffer from a hook Date: Tue, 16 Jul 2013 02:12:40 +0200 Message-ID: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1373933604 7905 80.91.229.3 (16 Jul 2013 00:13:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 16 Jul 2013 00:13:24 +0000 (UTC) To: Emacs developers Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Jul 16 02:13:26 2013 Return-path: Envelope-to: ged-emacs-devel@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 1UystS-0007Xb-EJ for ged-emacs-devel@m.gmane.org; Tue, 16 Jul 2013 02:13:26 +0200 Original-Received: from localhost ([::1]:54661 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UystR-0006Pn-VD for ged-emacs-devel@m.gmane.org; Mon, 15 Jul 2013 20:13:25 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60563) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UystO-0006PX-LP for emacs-devel@gnu.org; Mon, 15 Jul 2013 20:13:23 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UystN-0004pv-ML for emacs-devel@gnu.org; Mon, 15 Jul 2013 20:13:22 -0400 Original-Received: from mail-ee0-x22e.google.com ([2a00:1450:4013:c00::22e]:59161) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UystN-0004pp-F7 for emacs-devel@gnu.org; Mon, 15 Jul 2013 20:13:21 -0400 Original-Received: by mail-ee0-f46.google.com with SMTP id d41so24302eek.19 for ; Mon, 15 Jul 2013 17:13:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to:content-type; bh=jyY5G0bgouDoZlDZQkQwa5zsIiFDqJlw/4aBKq/kO3Q=; b=qwSBdRujJL2aOwsfrOZ195iyiATIeVswPvZI6Rjz5V78GasN1wXXD206oCSJAYaABE gJ/LuT9RxsGkm1YS6x75UBbpOSY0qWoBCJ27yJNmuHZmp/O70lN+N84cvCrAzUntmzps xzMqDw1s5IMo8A6UHa9BGW8tUmJWjyY78Cf82s3GQR0BBsJmLr32D/6zoI0AfUp/FBNP IdWAOJScWI9gdpbs7v/+NXXSGlbl6a7J0HmI+dgm59zau9Ax+PyCIvQATiBn+os9/h78 tvOIoP/vP4rriiHhd99z4R9WRg+wwhs3X+qp9ZPhiz0HHxPtF+sdS6zEqxqp62B/wscj 6EFA== X-Received: by 10.14.4.70 with SMTP id 46mr59701695eei.42.1373933600607; Mon, 15 Jul 2013 17:13:20 -0700 (PDT) Original-Received: by 10.14.142.4 with HTTP; Mon, 15 Jul 2013 17:12:40 -0700 (PDT) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a00:1450:4013:c00::22e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 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.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:161913 Archived-At: I discovered this because I call colum-marker-1 (from colum-marker-mode, http://www.emacswiki.org/emacs/column-marker.el) in the prog-mode-hook, but the issue is with font-lock-fontify-buffer. emacs -Q --eval "(add-hook 'prog-mode-hook #'font-lock-fontify-buffer)" src/xdisp.c -f kill-emacs On Emacs 24.3, -O0 -g3 --enable-checking: about 2 seconds. On trunk, -O2 -g3 --enable-checking: ~ 33 seconds, x16 slowdown. Any idea what could be causing this? J