From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "paul r" Newsgroups: gmane.emacs.devel Subject: Antialiased fonts makes scrolling noticably slower Date: Tue, 1 Apr 2008 20:06:24 +0200 Message-ID: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1207073230 21326 80.91.229.12 (1 Apr 2008 18:07:10 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 1 Apr 2008 18:07:10 +0000 (UTC) To: "Emacs Devel" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 01 20:07:42 2008 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 1Jgkt3-0000Bw-9U for ged-emacs-devel@m.gmane.org; Tue, 01 Apr 2008 20:07:09 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JgksR-0001Ko-4Y for ged-emacs-devel@m.gmane.org; Tue, 01 Apr 2008 14:06:31 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JgksN-0001KV-GP for emacs-devel@gnu.org; Tue, 01 Apr 2008 14:06:27 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JgksM-0001Jq-Cv for emacs-devel@gnu.org; Tue, 01 Apr 2008 14:06:27 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JgksM-0001JU-6I for emacs-devel@gnu.org; Tue, 01 Apr 2008 14:06:26 -0400 Original-Received: from fk-out-0910.google.com ([209.85.128.186]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1JgksL-0005ei-MZ for emacs-devel@gnu.org; Tue, 01 Apr 2008 14:06:25 -0400 Original-Received: by fk-out-0910.google.com with SMTP id 26so3063597fkx.10 for ; Tue, 01 Apr 2008 11:06:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; bh=HdKpcPbkw9hl9KBgjH5hn7U8tl+IbEOAxpRkeo4ZVvA=; b=VwLamLkTEvATbyb8zix5t+KLrvFvpMmFxUvP7my3lTdb0OXwlVJ3rScWaPpRAvc4rqWzLxpwCfXD03+DxG/qfDNKjUbgTUnXSuf0RPvWxJXuTljN5lvO1ipBX9hIW76m6DND4XPK3JKdPZRbj8lgtOGWpQ9o0T6Z6t/F07f7WHU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=kykuuY0qQIdi7e80xnZOJtMHgYh/tvntezuPN5N9dnQfDhzRvc3T/aaC4gjHcDWsPAlX7ngNWzVifq0Y/dhOQbux23M0GnQxMaAOg4zeihU1FiYbwTuUTtQUngbot4NUD3PCTp3A/ccP7Fh/d7ZoxoxayC0Ysb8m8jN1ydGq4lc= Original-Received: by 10.82.121.15 with SMTP id t15mr21063945buc.8.1207073184241; Tue, 01 Apr 2008 11:06:24 -0700 (PDT) Original-Received: by 10.82.175.3 with HTTP; Tue, 1 Apr 2008 11:06:24 -0700 (PDT) Content-Disposition: inline X-detected-kernel: by monty-python.gnu.org: 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:94135 Archived-At: Hello, I'm starting emacs 23.0.60, on gnu/linux - under X - with free ati graphic drivers (r350 IIRC) - 1.7Ghz x86 cpu - with option -fn "Dejavu Sans Mono-14" In a long buffer, if I do C-u 1 C-v , then I do C-x z (holding this z) to scroll line after line. Buffer scrolling is slow, letter drawing make them blink, and cpu peaks at maximum. Do everybody experience slowness with antialiased fonts ? Is that inherant to the hard work required to compute antialising, or to a poor performance in 2D on my box, or something else maybe ? Of course I do not experience this behaviour at all when antialiasing desactivated. Thanks Paul