From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Kastrup Newsgroups: gmane.emacs.devel Subject: Re: Performance regression in CVS HEAD's *compilation* buffer Date: Sat, 29 Jan 2011 07:24:22 +0100 Organization: Organization?!? Message-ID: <87vd184489.fsf@lola.goethe.zz> References: <18825.3759.960897.974404@priss.frightenedpiglet.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1296282290 6020 80.91.229.12 (29 Jan 2011 06:24:50 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 29 Jan 2011 06:24:50 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 29 07:24:46 2011 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 4.69) (envelope-from ) id 1Pj4Eo-0007m0-Cp for ged-emacs-devel@m.gmane.org; Sat, 29 Jan 2011 07:24:46 +0100 Original-Received: from localhost ([127.0.0.1]:40655 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pj4En-0001xO-Py for ged-emacs-devel@m.gmane.org; Sat, 29 Jan 2011 01:24:45 -0500 Original-Received: from [140.186.70.92] (port=60567 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Pj4Ee-0001xH-CC for emacs-devel@gnu.org; Sat, 29 Jan 2011 01:24:37 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Pj4Ed-000158-6z for emacs-devel@gnu.org; Sat, 29 Jan 2011 01:24:36 -0500 Original-Received: from lo.gmane.org ([80.91.229.12]:39056) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Pj4Ec-00014w-RD for emacs-devel@gnu.org; Sat, 29 Jan 2011 01:24:35 -0500 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1Pj4Eb-0007in-2V for emacs-devel@gnu.org; Sat, 29 Jan 2011 07:24:33 +0100 Original-Received: from p508ed509.dip.t-dialin.net ([80.142.213.9]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 29 Jan 2011 07:24:33 +0100 Original-Received: from dak by p508ed509.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 29 Jan 2011 07:24:33 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 21 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: p508ed509.dip.t-dialin.net X-Face: 2FEFf>]>q>2iw=B6, xrUubRI>pR&Ml9=ao@P@i)L:\urd*t9M~y1^:+Y]'C0~{mAl`oQuAl \!3KEIp?*w`|bL5qr,H)LFO6Q=qx~iH4DN; i"; /yuIsqbLLCh/!U#X[S~(5eZ41to5f%E@'ELIi$t^ Vc\LWP@J5p^rst0+('>Er0=^1{]M9!p?&:\z]|;&=NP3AhB!B_bi^]Pfkw User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:bADYMZ5gUV1boVsS1VFcm8P7WD8= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 80.91.229.12 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:135193 Archived-At: Stefan Monnier writes: >> I updated my CVS tree to HEAD today (2009-02-03, around noon PST), >> compiled it, and started using it. My previous sync had been around >> 2008-12-01. During that interval, the performance of inserting long >> lines into the *compilation* buffer has dropped by an order of >> magnitude. > > I've only recently started taking a look at compile.el and haven't had > a chance to investigate this problem, but I just tried: > > M-x compile RET echo C-u 6400 x RET > > and it finished instantly. Because that would arrive batched. Try M-x compile RET echo C-u 6400 x | dd obs=1 RET -- David Kastrup