From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Ulrich Mueller Newsgroups: gmane.emacs.devel Subject: Re: emacs takes exhorbitantly long to read long, one-line files. Date: Tue, 21 May 2013 14:06:04 +0200 Message-ID: <20891.25388.944056.442461@a1i15.kph.uni-mainz.de> References: <87ppwn62yr.fsf@digitalsignallabs.com> <5199E19A.3020503@yandex.ru> <877git6hhv.fsf@digitalsignallabs.com> <519A08B2.7010106@yandex.ru> <87r4h1lo20.fsf@kwarm.red-bean.com> <838v39wsjz.fsf@gnu.org> <20891.10479.288862.913812@a1i15.kph.uni-mainz.de> <519B4A8A.3000903@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1369138011 21372 80.91.229.3 (21 May 2013 12:06:51 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 21 May 2013 12:06:51 +0000 (UTC) Cc: Karl Fogel , Ulrich Mueller , Randy Yates , Eli Zaretskii , emacs-devel@gnu.org To: Dmitry Antipov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue May 21 14:06:50 2013 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UelL5-0000OQ-DV for ged-emacs-devel@m.gmane.org; Tue, 21 May 2013 14:06:47 +0200 Original-Received: from localhost ([::1]:38697 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UelL4-0005HM-Te for ged-emacs-devel@m.gmane.org; Tue, 21 May 2013 08:06:46 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:39198) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UelKs-0005D2-Na for emacs-devel@gnu.org; Tue, 21 May 2013 08:06:44 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UelKi-0005NT-Fm for emacs-devel@gnu.org; Tue, 21 May 2013 08:06:34 -0400 Original-Received: from a1www.kph.uni-mainz.de ([134.93.134.1]:56171) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UelKe-0005L3-QO; Tue, 21 May 2013 08:06:21 -0400 Original-Received: from a1i15.kph.uni-mainz.de (a1i15.kph.uni-mainz.de [134.93.134.92]) by a1www.kph.uni-mainz.de (8.14.4/8.13.4) with ESMTP id r4LC6CTj008672; Tue, 21 May 2013 14:06:12 +0200 Original-Received: from a1i15.kph.uni-mainz.de (localhost [127.0.0.1]) by a1i15.kph.uni-mainz.de (8.14.6/8.14.2) with ESMTP id r4LC6Cbx005388; Tue, 21 May 2013 14:06:12 +0200 Original-Received: (from ulm@localhost) by a1i15.kph.uni-mainz.de (8.14.6/8.14.6/Submit) id r4LC6A3u005379; Tue, 21 May 2013 14:06:10 +0200 In-Reply-To: <519B4A8A.3000903@yandex.ru> X-Mailer: VM 8.2.0b under 24.3.1 (x86_64-pc-linux-gnu) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 134.93.134.1 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:159707 Archived-At: >>>>> On Tue, 21 May 2013, Dmitry Antipov wrote: >> I've done this test for a file with one line of 16 MB, and I get >> the following times for the first and second commands (emacs -Q -nw >> in an 80x24 xterm): >> >> Emacs 23.4: 4 s / 9 s >> Emacs 24.3: 16 s / 34 s >> >> Is this degradation of performance expected? > Can you try 24.3 with (setq-default bidi-display-reordering nil)? > With BIDI disabled, it shouldn't be 4x at least. It's 6 s / 11 s then. Ulrich