From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Reitter Newsgroups: gmane.emacs.devel Subject: Re: Low redisplay performance (23 regression) Date: Tue, 21 Apr 2009 11:30:39 -0400 Message-ID: References: <4870CC42-A08E-4BE9-B566-0F4DA7AB0B74@gmail.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 (Apple Message framework v930.3) Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1240327874 21079 80.91.229.12 (21 Apr 2009 15:31:14 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 21 Apr 2009 15:31:14 +0000 (UTC) Cc: emacs-devel@gnu.org To: William Xu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 21 17:32:32 2009 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1LwHxO-0000nl-5l for ged-emacs-devel@m.gmane.org; Tue, 21 Apr 2009 17:32:22 +0200 Original-Received: from localhost ([127.0.0.1]:54706 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LwHvy-0002mj-Qf for ged-emacs-devel@m.gmane.org; Tue, 21 Apr 2009 11:30:54 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LwHvu-0002mS-7E for emacs-devel@gnu.org; Tue, 21 Apr 2009 11:30:50 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LwHvo-0002lW-Jo for emacs-devel@gnu.org; Tue, 21 Apr 2009 11:30:48 -0400 Original-Received: from [199.232.76.173] (port=38898 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LwHvo-0002lT-FV for emacs-devel@gnu.org; Tue, 21 Apr 2009 11:30:44 -0400 Original-Received: from yw-out-1718.google.com ([74.125.46.155]:10683) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LwHvo-0005nO-6P for emacs-devel@gnu.org; Tue, 21 Apr 2009 11:30:44 -0400 Original-Received: by yw-out-1718.google.com with SMTP id 9so3229743ywk.66 for ; Tue, 21 Apr 2009 08:30:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:cc:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:mime-version :subject:date:references:x-mailer; bh=73LIsHp2BdKCvhXKZedoLdPGJWXmYaW+K0aJO0UNemI=; b=cwgx69bo3QS1fDdh31bS25FPDQx1howiln2uSY0S/3caNP++c+ngwRpRXEmswsnPK4 ibmqGwT9nopWDv/Vdv/MPRrmJeQqdWvsdudGREtoottgjPQVWzTlGTdOAwR0GCshLVdJ OL8/WwnyTzyDDGX0YkzcRwnm+7GVODUX4hxkc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=cc:message-id:from:to:in-reply-to:content-type :content-transfer-encoding:mime-version:subject:date:references :x-mailer; b=VzhJHhkyz1OvbRMJIyLXEPH3AdYuJYNXqEm91r0/s6KGMXJv5p3gPCkPAx2lF4lIUk pxCgDy2WlM45k5QYpX3HVBUhySubeLXtkL9BZuhhF3zXPqaCFjsKi4jDXQ9aozZE7m6J cu4Gla8buqr+U4MqbV5bo4UsXuXacsTPFWjTQ= Original-Received: by 10.100.7.13 with SMTP id 13mr9942804ang.10.1240327843422; Tue, 21 Apr 2009 08:30:43 -0700 (PDT) Original-Received: from SCARLETT.PSY.CMU.EDU (SCARLETT.PSY.CMU.EDU [128.2.249.106]) by mx.google.com with ESMTPS id b29sm4115831ana.7.2009.04.21.08.30.42 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 21 Apr 2009 08:30:42 -0700 (PDT) In-Reply-To: X-Mailer: Apple Mail (2.930.3) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 2) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:110392 Archived-At: On Apr 21, 2009, at 10:56 AM, William Xu wrote: > David Reitter writes: > >> With font-lock-mode (in c-mode) enabled, the difference is even >> larger: >> >> About 2.5 seconds in Emacs 22, and more than 7 seconds in 23/NS. > > Is my macbook too fast? With font-lock-mode enabled (23/NS), page > scrolling in buffer emacs.c responds nearly instantly. I see no delay > at all. I can't see a delay when scrolling just one page. The above figures are for scrolling page-wise through the whole buffer. I've tried building with -O9 and tune settings for the CPU - this doesn't see to do much.