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: Wed, 29 Apr 2009 13:49:26 -0400 Message-ID: <24EC426D-D6DA-438B-B794-72C123142235@gmail.com> References: <4870CC42-A08E-4BE9-B566-0F4DA7AB0B74@gmail.com> <878wlj228q.fsf@freebits.de> <87r5zb4auv.fsf@thinkpad.tsdh.de> 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 1241027400 7928 80.91.229.12 (29 Apr 2009 17:50:00 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 29 Apr 2009 17:50:00 +0000 (UTC) Cc: emacs-devel@gnu.org To: Tassilo Horn Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Apr 29 19:49:51 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 1LzDul-0000jO-6w for ged-emacs-devel@m.gmane.org; Wed, 29 Apr 2009 19:49:47 +0200 Original-Received: from localhost ([127.0.0.1]:57099 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LzDuk-0007Sw-Eg for ged-emacs-devel@m.gmane.org; Wed, 29 Apr 2009 13:49:46 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LzDuZ-0007P2-ND for emacs-devel@gnu.org; Wed, 29 Apr 2009 13:49:35 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LzDuY-0007OL-Sy for emacs-devel@gnu.org; Wed, 29 Apr 2009 13:49:35 -0400 Original-Received: from [199.232.76.173] (port=54884 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LzDuY-0007OE-Mj for emacs-devel@gnu.org; Wed, 29 Apr 2009 13:49:34 -0400 Original-Received: from mail-gx0-f159.google.com ([209.85.217.159]:58012) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LzDuY-0003St-Dq for emacs-devel@gnu.org; Wed, 29 Apr 2009 13:49:34 -0400 Original-Received: by gxk3 with SMTP id 3so2701175gxk.18 for ; Wed, 29 Apr 2009 10:49:29 -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=FYCfYI/2JFHFeGBUNpqxfsAmsuX1QQzNQjMbcjZXyqQ=; b=gsDHADfUzEBo0EoYFu6dbaeImaVFBdXfw9su3nL3Ab5xcd/i3l73JG7d9jwPYdTNYj GjwhqTGX/QsycTVp+cs49UK6Mf5rDQfryTqVS2x6Exf8Xk7kYag6dK8iJNLYxmfa+Avq 1cjbjmtIKR1GS3/BkttfRAEhaucu0D/ufctrA= 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=MYebp/zuk7/sCDmNNj6al89s+pQqNDMAAz5+5MQ8a8ixgObhnlBGlcLKoa48HiCKeE hcFgEgfTpQEMZCsC051hLSCGcCLpbcf9XeVB3DBmtlqTCm6GpEhcjSNIG2uKHebrFuCb z6gEu1G42NN6Aj49es2jZr3Cu/xZfdFZb8M78= Original-Received: by 10.90.106.4 with SMTP id e4mr429021agc.114.1241027368775; Wed, 29 Apr 2009 10:49:28 -0700 (PDT) Original-Received: from SCARLETT.PSY.CMU.EDU (SCARLETT.PSY.CMU.EDU [128.2.249.106]) by mx.google.com with ESMTPS id 3sm2186957aga.45.2009.04.29.10.49.27 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 29 Apr 2009 10:49:28 -0700 (PDT) In-Reply-To: <87r5zb4auv.fsf@thinkpad.tsdh.de> 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:110552 Archived-At: On Apr 29, 2009, at 1:40 PM, Tassilo Horn wrote: > > And on yet another related note, today I've found out that after > changing the font scale for the current buffer using `C-x C-+' or `C-x > C--' line-by-line scrolling slows down considerably. As said earlier, I found that using face-remapping is highly correlated with this slow-down. > Oh, yet another observation: While writing this mail I enlarged the > text > scale with `C-x C-+' and if I press and hold the up or down key, point > hangs for very short periods of time at some positions and then jumps > over some lines without visible redisplay, even though no scrolling at > all is done. I see the same thing. Did you (setq redisplay-dont-pause t) ? Either way, it suggests that drawing takes much longer with a change of faces. (E.g., M-x list-faces-display ?)