From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Miles Bader Newsgroups: gmane.emacs.devel Subject: Re: redundant redisplay Date: Tue, 27 Apr 2004 18:40:05 -0400 Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: <20040427224005.GB14563@fencepost> References: <20040427.105738.207586596.Takaaki.Ota@am.sony.com> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1083105909 15027 80.91.224.253 (27 Apr 2004 22:45:09 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Tue, 27 Apr 2004 22:45:09 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Wed Apr 28 00:45:04 2004 Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1BIbK4-0008NH-00 for ; Wed, 28 Apr 2004 00:45:04 +0200 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian)) id 1BIbK4-0007Xp-00 for ; Wed, 28 Apr 2004 00:45:04 +0200 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.30) id 1BIbIj-0005ju-77 for emacs-devel@quimby.gnus.org; Tue, 27 Apr 2004 18:43:41 -0400 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.30) id 1BIbIO-0005WE-QS for emacs-devel@gnu.org; Tue, 27 Apr 2004 18:43:20 -0400 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.30) id 1BIbHr-0005Ae-Ip for emacs-devel@gnu.org; Tue, 27 Apr 2004 18:43:18 -0400 Original-Received: from [199.232.76.164] (helo=fencepost.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.30) id 1BIbHK-0004n3-Hp for emacs-devel@gnu.org; Tue, 27 Apr 2004 18:42:14 -0400 Original-Received: from miles by fencepost.gnu.org with local (Exim 4.24) id 1BIbFF-00072K-AG; Tue, 27 Apr 2004 18:40:05 -0400 Original-To: Tak Ota Content-Disposition: inline In-Reply-To: <20040427.105738.207586596.Takaaki.Ota@am.sony.com> User-Agent: Mutt/1.3.28i Blat: Foop X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.4 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Xref: main.gmane.org gmane.emacs.devel:22272 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:22272 On Tue, Apr 27, 2004 at 10:57:38AM -0700, Tak Ota wrote: > Some recent change, which I cannot identify, affects the redisplay > mechanism so that set-buffer-modified-p redisplays window contents > redundantly. It creates occasional annoying partial screen flashing > as well as considerably slows down a buffer process which updates > modeline frequently. Hmmm, I've noticed that recent version of emacs have started flickering like crazy in some circumstances, but haven't had much time to debug it.[*] I mostly see this in Gnus *Summary ...* buffers: the whole (summary) window will suddenly start flickering, and it seems that it's redrawing the entire window constantly. I don't know if this is connected with set-buffer-modified-p or not though. [*] Insert my usual disclaimer that I use a fairly hacked emacs, and haven't tested whether this behavior occurs in vanilla emacs or not. Thanks, -Miles -- In New York, most people don't have cars, so if you want to kill a person, you have to take the subway to their house. And sometimes on the way, the train is delayed and you get impatient, so you have to kill someone on the subway. [George Carlin]