From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: emacs slow on dired renaming Date: Sat, 05 Apr 2014 09:55:53 -0400 Message-ID: References: <871txekiid.fsf@capuchin.co.uk> <87a9c28clz.fsf@capuchin.co.uk> <87lhvl6xog.fsf@capuchin.co.uk> <8761motb26.fsf@capuchin.co.uk> <83fvls871l.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1396706205 29696 80.91.229.3 (5 Apr 2014 13:56:45 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 5 Apr 2014 13:56:45 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sat Apr 05 15:56:38 2014 Return-path: Envelope-to: geh-help-gnu-emacs@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 1WWR5I-00084y-0k for geh-help-gnu-emacs@m.gmane.org; Sat, 05 Apr 2014 15:56:36 +0200 Original-Received: from localhost ([::1]:54750 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WWR5H-0003nu-HP for geh-help-gnu-emacs@m.gmane.org; Sat, 05 Apr 2014 09:56:35 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:51321) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WWR4z-0003na-NV for help-gnu-emacs@gnu.org; Sat, 05 Apr 2014 09:56:25 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WWR4r-0001Ai-Ib for help-gnu-emacs@gnu.org; Sat, 05 Apr 2014 09:56:17 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:57050) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WWR4r-0001AS-BT for help-gnu-emacs@gnu.org; Sat, 05 Apr 2014 09:56:09 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1WWR4p-0007dz-Io for help-gnu-emacs@gnu.org; Sat, 05 Apr 2014 15:56:07 +0200 Original-Received: from 192-171-35-19.cpe.pppoe.ca ([192.171.35.19]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 05 Apr 2014 15:56:07 +0200 Original-Received: from monnier by 192-171-35-19.cpe.pppoe.ca with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 05 Apr 2014 15:56:07 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 15 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 192-171-35-19.cpe.pppoe.ca User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) Cancel-Lock: sha1:LUB79GFLALSvZKbkV+Q5QxGttrk= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:97009 Archived-At: > (defun dired-in-this-tree (file dir) > ;;"Is FILE part of the directory tree starting at DIR?" > (let (case-fold-search) > (string-match-p (concat "^" (regexp-quote dir)) file))) BTW, this is string-prefix-p, no? > As another possible hint, does the number of times dired-create-files > is called (26704) make sense? This number is the number of samples, not the number of times the function was called, right? Stefan