From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Display slowness that is painful Date: Tue, 31 Jan 2006 21:59:56 -0500 Message-ID: <87acdblr9b.fsf-monnier+emacs@gnu.org> References: <87slr5c78p.fsf@stupidchicken.com> <877j8fx43q.fsf@stupidchicken.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1138762862 29356 80.91.229.2 (1 Feb 2006 03:01:02 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 1 Feb 2006 03:01:02 +0000 (UTC) Cc: rms@gnu.org, emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Feb 01 04:00:58 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1F48Ec-0005hP-0D for ged-emacs-devel@m.gmane.org; Wed, 01 Feb 2006 04:00:43 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1F48Hd-0003oT-61 for ged-emacs-devel@m.gmane.org; Tue, 31 Jan 2006 22:03:49 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1F48H7-0003ng-B1 for emacs-devel@gnu.org; Tue, 31 Jan 2006 22:03:19 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1F48H1-0003mL-38 for emacs-devel@gnu.org; Tue, 31 Jan 2006 22:03:12 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1F48H0-0003mH-Tr for emacs-devel@gnu.org; Tue, 31 Jan 2006 22:03:11 -0500 Original-Received: from [209.226.175.93] (helo=tomts36-srv.bellnexxia.net) by monty-python.gnu.org with esmtp (Exim 4.52) id 1F48FX-0007pO-DB; Tue, 31 Jan 2006 22:01:39 -0500 Original-Received: from alfajor ([70.49.80.203]) by tomts36-srv.bellnexxia.net (InterMail vM.5.01.06.13 201-253-122-130-113-20050324) with ESMTP id <20060201025956.TMIK5032.tomts36-srv.bellnexxia.net@alfajor>; Tue, 31 Jan 2006 21:59:56 -0500 Original-Received: by alfajor (Postfix, from userid 1000) id 9F424D736C; Tue, 31 Jan 2006 21:59:56 -0500 (EST) Original-To: Chong Yidong In-Reply-To: <877j8fx43q.fsf@stupidchicken.com> (Chong Yidong's message of "Tue, 31 Jan 2006 20:25:13 -0500") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) 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:49861 Archived-At: > This is *really* not the time to make changes in redisplay. I think > the problem here is simply that if you want to display characters as > \XXX, the redisplay iterator has to go through four times as many > glyphs. Huh? Four times more glyphs per char/byte, yes. But four times fewer chars/bytes get displayed, so it should be a wash. In utf-8 environments, unibyte_display_via_language_environment doesn't make much sense, and around here utf-8 environments are becoming the norm. Stefan