From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Low redisplay performance (23 regression) Date: Tue, 21 Apr 2009 22:07:59 +0300 Message-ID: <83iqkxhlkg.fsf@gnu.org> References: <4870CC42-A08E-4BE9-B566-0F4DA7AB0B74@gmail.com> <873ac3arbf.fsf@cyd.mit.edu> <83r5zmhf2q.fsf@gnu.org> <83mya9hm0i.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: ger.gmane.org 1240340912 5224 80.91.229.12 (21 Apr 2009 19:08:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 21 Apr 2009 19:08:32 +0000 (UTC) To: lekktu@gmail.com, david.reitter@gmail.com, cyd@stupidchicken.com, emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 21 21:09:51 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 1LwLLT-0003nI-8t for ged-emacs-devel@m.gmane.org; Tue, 21 Apr 2009 21:09:27 +0200 Original-Received: from localhost ([127.0.0.1]:36913 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LwLK4-0006OM-51 for ged-emacs-devel@m.gmane.org; Tue, 21 Apr 2009 15:08:00 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LwLJz-0006O7-Ic for emacs-devel@gnu.org; Tue, 21 Apr 2009 15:07:55 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LwLJy-0006Nv-K7 for emacs-devel@gnu.org; Tue, 21 Apr 2009 15:07:54 -0400 Original-Received: from [199.232.76.173] (port=59663 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LwLJy-0006Ns-Ep for emacs-devel@gnu.org; Tue, 21 Apr 2009 15:07:54 -0400 Original-Received: from mtaout2.012.net.il ([84.95.2.4]:40129) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LwLJx-0007VT-VF for emacs-devel@gnu.org; Tue, 21 Apr 2009 15:07:54 -0400 Original-Received: from conversion-daemon.i_mtaout2.012.net.il by i_mtaout2.012.net.il (HyperSendmail v2004.12) id <0KIG00000SN23T00@i_mtaout2.012.net.il> for emacs-devel@gnu.org; Tue, 21 Apr 2009 22:07:53 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([84.228.219.161]) by i_mtaout2.012.net.il (HyperSendmail v2004.12) with ESMTPA id <0KIG00DH5T54DQ40@i_mtaout2.012.net.il>; Tue, 21 Apr 2009 22:07:53 +0300 (IDT) In-reply-to: <83mya9hm0i.fsf@gnu.org> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by monty-python.gnu.org: Solaris 9.1 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:110398 Archived-At: > Date: Tue, 21 Apr 2009 21:58:21 +0300 > From: Eli Zaretskii > Cc: david.reitter@gmail.com, cyd@stupidchicken.com, emacs-devel@gnu.org > > > is able to scroll a large file (for example, lisp/ChangeLog) keeping up > > with the keyboard typematic rate without breaking a sweat. Emacs 23 is > > unable and every now and then resorts to recentering (which I hate). > > Is this in "emacs -Q"? > > Anyway, is the slow-down you see close to the OP's reported factor of > almost 3? Or is it just slow-down? Another idea: could this be somehow related to the fact that your setup uses UTF-8 as the default encoding? What happens if you set your system so that the default is Latin-1, say?