From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#18522: 24.4.50; mapcar is very slow Date: Sun, 28 Feb 2016 15:42:05 +1030 Message-ID: <878u25wh96.fsf@gnus.org> References: <8738bkdjqg.fsf@micropit.roche-blanche.homenet.org> <83r3g4lnor.fsf@gnu.org> <87r3g4o4uw.fsf@roche-blanche.net> <83h9h0jwfo.fsf@gnu.org> <87mvqru119.fsf@roche-blanche.net> <8360xfjsyr.fsf@gnu.org> <878u2bs7tl.fsf@roche-blanche.net> <83r3g3iajr.fsf@gnu.org> <87twkypfqx.fsf@roche-blanche.net> <83vb5egg8y.fsf@gnu.org> <87fuwikmzc.fsf@roche-blanche.net> <83io1ege6r.fsf@gnu.org> <87y4a9kh9e.fsf@roche-blanche.net> <87vb5dvf6c.fsf@gnus.org> <8760xdi54j.fsf@roche-blanche.net> <83vb5cg4r6.fsf@gnu.org> <87wppspsnh.fsf@roche-blanche.net> <8337sgfy08.fsf@gnu.org> <87wpprn34n.fsf@roche-blanche.net> <8360xbenbm.fsf@gnu.org> <87si0fln5a.fsf@roche-blanche.net> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1456636404 25856 80.91.229.3 (28 Feb 2016 05:13:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 28 Feb 2016 05:13:24 +0000 (UTC) Cc: 18522@debbugs.gnu.org To: Peter =?UTF-8?Q?M=C3=BCnster?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Feb 28 06:13:12 2016 Return-path: Envelope-to: geb-bug-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 1aZtfL-00028R-Ax for geb-bug-gnu-emacs@m.gmane.org; Sun, 28 Feb 2016 06:13:11 +0100 Original-Received: from localhost ([::1]:57523 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aZtfK-0007oS-Ju for geb-bug-gnu-emacs@m.gmane.org; Sun, 28 Feb 2016 00:13:10 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46776) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aZtfG-0007mk-Di for bug-gnu-emacs@gnu.org; Sun, 28 Feb 2016 00:13:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aZtfC-0006h0-CC for bug-gnu-emacs@gnu.org; Sun, 28 Feb 2016 00:13:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:52185) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aZtfC-0006gw-9S for bug-gnu-emacs@gnu.org; Sun, 28 Feb 2016 00:13:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aZtfB-0006no-QR; Sun, 28 Feb 2016 00:13:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org, bugs@gnus.org Resent-Date: Sun, 28 Feb 2016 05:13:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18522 X-GNU-PR-Package: emacs,gnus X-GNU-PR-Keywords: Original-Received: via spool by 18522-submit@debbugs.gnu.org id=B18522.145663636126120 (code B ref 18522); Sun, 28 Feb 2016 05:13:01 +0000 Original-Received: (at 18522) by debbugs.gnu.org; 28 Feb 2016 05:12:41 +0000 Original-Received: from localhost ([127.0.0.1]:49312 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aZteq-0006nE-US for submit@debbugs.gnu.org; Sun, 28 Feb 2016 00:12:41 -0500 Original-Received: from hermes.netfonds.no ([80.91.224.195]:60013) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aZtep-0006n6-Fw for 18522@debbugs.gnu.org; Sun, 28 Feb 2016 00:12:39 -0500 Original-Received: from cpe-60-225-211-161.nsw.bigpond.net.au ([60.225.211.161] helo=mouse) by hermes.netfonds.no with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1aZteN-0001ys-Lk; Sun, 28 Feb 2016 06:12:12 +0100 In-Reply-To: <87si0fln5a.fsf@roche-blanche.net> ("Peter \=\?iso-8859-1\?Q\?M\?\= \=\?iso-8859-1\?Q\?\=FCnster\=22's\?\= message of "Fri, 26 Feb 2016 12:35:45 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) X-MailScanner-ID: 1aZteN-0001ys-Lk MailScanner-NULL-Check: 1457241134.25374@jhIQIO0uXMBl5BIEpJ2JaQ X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:114005 Archived-At: I've now rewritten that function to not use all those regexp and stuff, and I'm pleased to say that (benchmark-run 1 (dotimes (i 100000) (parse-time-string "Fri, 13 Feb 2015 14:40:02 +0000"))) went from approx 9 seconds on my computer to 3.5 seconds (in fresh -Q Emacsen). :-) (I haven't measured whether that's because it's creating less garbage or just because it's ... faster.) -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no