From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: Richard M Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: `make-overlay' very slow
Date: Tue, 14 Apr 2009 17:15:21 -0400
Message-ID: <E1LtpyT-0001fN-EH@fencepost.gnu.org>
References: <20090410.235059.24212167.wl@gnu.org>
	<20090411.004248.247201382.wl@gnu.org>
	<jwvbpr42ics.fsf-monnier+emacs@gnu.org>
	<20090411.081150.169736792.wl@gnu.org>
	<jwvr5zz1hzq.fsf-monnier+emacs@gnu.org> <E1LthMT-00067B-Pu@etlken>
	<jwvprfftn08.fsf-monnier+emacs@gnu.org>
Reply-To: rms@gnu.org
NNTP-Posting-Host: lo.gmane.org
Content-Type: text/plain; charset=ISO-8859-15
X-Trace: ger.gmane.org 1239743769 3091 80.91.229.12 (14 Apr 2009 21:16:09 GMT)
X-Complaints-To: usenet@ger.gmane.org
NNTP-Posting-Date: Tue, 14 Apr 2009 21:16:09 +0000 (UTC)
Cc: acm@muc.de, emacs-devel@gnu.org, schwab@linux-m68k.org, handa@m17n.org
To: Stefan Monnier <monnier@iro.umontreal.ca>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Apr 14 23:17:28 2009
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org>
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 1Ltq0O-0002UY-UJ
	for ged-emacs-devel@m.gmane.org; Tue, 14 Apr 2009 23:17:21 +0200
Original-Received: from localhost ([127.0.0.1]:40734 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1Ltpyz-0007NL-Qg
	for ged-emacs-devel@m.gmane.org; Tue, 14 Apr 2009 17:15:53 -0400
Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1Ltpya-0007MH-Ud
	for emacs-devel@gnu.org; Tue, 14 Apr 2009 17:15:29 -0400
Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1LtpyV-0007Lb-Ap
	for emacs-devel@gnu.org; Tue, 14 Apr 2009 17:15:27 -0400
Original-Received: from [199.232.76.173] (port=56131 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1LtpyV-0007LY-5t
	for emacs-devel@gnu.org; Tue, 14 Apr 2009 17:15:23 -0400
Original-Received: from fencepost.gnu.org ([140.186.70.10]:53060)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <rms@gnu.org>) id 1LtpyU-0004yt-Q7
	for emacs-devel@gnu.org; Tue, 14 Apr 2009 17:15:22 -0400
Original-Received: from rms by fencepost.gnu.org with local (Exim 4.67)
	(envelope-from <rms@gnu.org>)
	id 1LtpyT-0001fN-EH; Tue, 14 Apr 2009 17:15:21 -0400
In-reply-to: <jwvprfftn08.fsf-monnier+emacs@gnu.org> (message from Stefan
	Monnier on Tue, 14 Apr 2009 09:03:09 -0400)
X-detected-operating-system: by monty-python.gnu.org: GNU/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." <emacs-devel.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/emacs-devel>,
	<mailto:emacs-devel-request@gnu.org?subject=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:110282
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/110282>

When you access overlays in nonrandom order, the speed is very much
affected by where the "center" is.  Calling `overlay-recenter'
at suitable times might cause a big speedup.