From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: John Wiegley Newsgroups: gmane.emacs.bugs Subject: bug#11545: 24.0.96-mac-2.92; Strange speed problem scrolling in C++ code Date: Wed, 23 May 2012 17:27:34 -0500 Message-ID: References: <83boleyisb.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1337812102 23424 80.91.229.3 (23 May 2012 22:28:22 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 23 May 2012 22:28:22 +0000 (UTC) Cc: mituharu+bug-gnu-emacs-mac@math.s.chiba-u.ac.jp, 11545@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu May 24 00:28:21 2012 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 1SXK2W-0007lN-ND for geb-bug-gnu-emacs@m.gmane.org; Thu, 24 May 2012 00:28:20 +0200 Original-Received: from localhost ([::1]:35797 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SXK2V-0002vD-Tt for geb-bug-gnu-emacs@m.gmane.org; Wed, 23 May 2012 18:28:19 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:47666) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SXK2R-0002uM-Aq for bug-gnu-emacs@gnu.org; Wed, 23 May 2012 18:28:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SXK2P-0001A6-KI for bug-gnu-emacs@gnu.org; Wed, 23 May 2012 18:28:14 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:59784) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SXK2M-00019V-QX; Wed, 23 May 2012 18:28:10 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1SXK3B-000874-Nt; Wed, 23 May 2012 18:29:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: John Wiegley Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org, bug-cc-mode@gnu.org Resent-Date: Wed, 23 May 2012 22:29:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 11545 X-GNU-PR-Package: emacs,cc-mode X-GNU-PR-Keywords: Original-Received: via spool by 11545-submit@debbugs.gnu.org id=B11545.133781211731152 (code B ref 11545); Wed, 23 May 2012 22:29:01 +0000 Original-Received: (at 11545) by debbugs.gnu.org; 23 May 2012 22:28:37 +0000 Original-Received: from localhost ([127.0.0.1]:41097 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1SXK2n-00086P-BP for submit@debbugs.gnu.org; Wed, 23 May 2012 18:28:37 -0400 Original-Received: from mail-gg0-f172.google.com ([209.85.161.172]:62728) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1SXK2l-00086C-KU for 11545@debbugs.gnu.org; Wed, 23 May 2012 18:28:36 -0400 Original-Received: by ggnc4 with SMTP id c4so6892654ggn.3 for <11545@debbugs.gnu.org>; Wed, 23 May 2012 15:27:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=to:cc:subject:references:from:date:in-reply-to:message-id :user-agent:mime-version:content-type; bh=BtSniL9natWFyAQcBZakujDhAwFR5FqdJ71WQgKVDCA=; b=QyOC3G/0vLlFL6HscvLgbMtwKvRlSVsCQuvHsBZR4zidakDMrv++UqVNvIUf/yiBap NAmlBdNnc7DW4fxjeHd4x/yXwTgrNDCfZV0AyZwXJnJ3RRTNl12Fpqap6k0mqjKVsbwd 3eMC0rqHYiqQbbctbx580YElePSpw8ASyPozHMWGrNSM4YaDx8he71j6v2zh1iSRsnEh XrDjDmlXDOJNoqlVZ+U9H3/A+0skpmHeVxvpQm7SJaa/UBQxj5QH+8Fgwht5sFYUI8Eq 7kTwW6jnJK+RssOMsX9lhVeKIoxMkzivcku0CKFFGAyKnMQTRpk/XnsLkja6/awDazc9 GPDQ== Original-Received: by 10.50.156.228 with SMTP id wh4mr12497161igb.47.1337812057438; Wed, 23 May 2012 15:27:37 -0700 (PDT) Original-Received: from vulcan.local (c-98-215-105-167.hsd1.il.comcast.net. [98.215.105.167]) by mx.google.com with ESMTPS id vw5sm318144igb.13.2012.05.23.15.27.35 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 23 May 2012 15:27:35 -0700 (PDT) Original-Received: by vulcan.local (Postfix, from userid 501) id 5E4EDE5AF3D5; Wed, 23 May 2012 17:27:34 -0500 (CDT) In-Reply-To: <83boleyisb.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 23 May 2012 19:16:36 +0300") User-Agent: Gnus/5.130006 (Ma Gnus v0.6) Emacs/23.4 (darwin) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 140.186.70.43 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:60319 Archived-At: >>>>> Eli Zaretskii writes: >> Start either Emacs with -Q -nw. Open a largish C++ file. Hold down C-v. >> On my laptop the lagginess was quite obvious, on my desktop a little less >> so. > Does the sluggishness go away if, right after starting Emacs, you type "M-x > global-font-lock-mode RET" to disable font-lock, and _then_ visit that > largish C++ file? Yes. With font-lock off, it is buttery smooth. So it looks like either the new cc-mode, or Emacs 24, is causing lots of GC'ing when lazy fontifying a large C++ header. And in fact, this header is mostly C, so there's nothing complex in it like templates to throw cc-mode off the mark. John