From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: storm@cua.dk (Kim F. Storm) Newsgroups: gmane.emacs.devel Subject: Re: A question about read syntax and compiled backreferences Date: Sun, 28 Jan 2007 01:31:11 +0100 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1169944274 25139 80.91.229.12 (28 Jan 2007 00:31:14 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Sun, 28 Jan 2007 00:31:14 +0000 (UTC) Cc: Juanma Barranquero , Miles Bader , Stefan Monnier , Emacs Devel To: Andreas Schwab Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun Jan 28 01:31:06 2007 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 1HAxwn-0001eT-8Y for ged-emacs-devel@m.gmane.org; Sun, 28 Jan 2007 01:31:05 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HAxwm-0000Ca-R8 for ged-emacs-devel@m.gmane.org; Sat, 27 Jan 2007 19:31:04 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HAxwb-0000AY-KC for emacs-devel@gnu.org; Sat, 27 Jan 2007 19:30:53 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HAxwY-0000A3-V3 for emacs-devel@gnu.org; Sat, 27 Jan 2007 19:30:53 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HAxwY-00009m-Qe for emacs-devel@gnu.org; Sat, 27 Jan 2007 19:30:50 -0500 Original-Received: from pfepc.post.tele.dk ([195.41.46.237]) by monty-python.gnu.org with esmtp (Exim 4.52) id 1HAxwW-0005B2-H7; Sat, 27 Jan 2007 19:30:48 -0500 Original-Received: from kfs-l.imdomain.dk.cua.dk (0x503e2644.bynxx19.adsl-dhcp.tele.dk [80.62.38.68]) by pfepc.post.tele.dk (Postfix) with SMTP id 167F88A0023; Sun, 28 Jan 2007 01:30:42 +0100 (CET) In-Reply-To: (Andreas Schwab's message of "Sun\, 28 Jan 2007 00\:15\:57 +0100") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.93 (gnu/linux) X-detected-kernel: Linux 2.6, seldom 2.4 (older, 4) 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:65547 Archived-At: Andreas Schwab writes: > Stefan Monnier writes: > >> BTW, maybe it would be worth it to try and investigate why it gets so much >> slower: we may be able to fix the slowdown rather than circumvent it. > > It makes print_preprocess quadratic in the number of subobjects in the > object being printed. So using a hash table would improve performance significantly ... But now is not the time to make that change. -- Kim F. Storm http://www.cua.dk