From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Peter =?UTF-8?Q?M=C3=BCnster?= Newsgroups: gmane.emacs.bugs Subject: bug#18522: 24.4.50; mapcar is very slow Date: Sun, 21 Feb 2016 15:36:21 +0100 Message-ID: <87d1rquo4a.fsf@roche-blanche.net> References: <8738bkdjqg.fsf@micropit.roche-blanche.homenet.org> <831tqyvph5.fsf@gnu.org> <87lhp6q2dm.fsf@micropit.roche-blanche.homenet.org> <83vboau92s.fsf@gnu.org> <87mw9fczbo.fsf@micropit.roche-blanche.homenet.org> <87zj8inrnv.fsf@building.gnus.org> <871tltq3j9.fsf@roche-blanche.net> <877fvli0qt.fsf@building.gnus.org> <87bnkb1n9w.fsf@roche-blanche.net> <87wpqh9gm3.fsf@gnus.org> <87io1nnx88.fsf@roche-blanche.net> <87vb5l8en7.fsf@gnus.org> <83wpq1rt5o.fsf@gnu.org> <8737so5neo.fsf@gnus.org> <831t87re7a.fsf@gnu.org> <87bn7b3hnz.fsf@roche-blanche.net> <83lh6fpv4z.fsf@gnu.org> <87h9h2xr9k.fsf@roche-blanche.net> <56C99AD0.2000309@gmx.at> <87wppywbaz.fsf@roche-blanche.net> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1456065440 32654 80.91.229.3 (21 Feb 2016 14:37:20 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 21 Feb 2016 14:37:20 +0000 (UTC) Cc: larsi@gnus.org, 18522@debbugs.gnu.org To: martin rudalics Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Feb 21 15:37:10 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 1aXV8I-0007Ng-6b for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 21 Feb 2016 14:37:01 +0000 Original-Received: (at 18522) by debbugs.gnu.org; 21 Feb 2016 14:36:31 +0000 Original-Received: from localhost ([127.0.0.1]:35921 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aXV7f-0004nw-Bf for submit@debbugs.gnu.org; Sun, 21 Feb 2016 09:36:31 -0500 Original-Received: from smtp01.smtpout.orange.fr ([80.12.242.123]:29212 helo=smtp.smtpout.orange.fr) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aXV7e-0004nk-8j for 18522@debbugs.gnu.org; Sun, 21 Feb 2016 09:36:30 -0500 Original-Received: from micropit.roche-blanche.homenet.org ([2.2.219.34]) by mwinf5d54 with ME id M2cM1s00y0l7JQ2032cMeG; Sun, 21 Feb 2016 15:36:24 +0100 X-ME-Helo: micropit.roche-blanche.homenet.org X-ME-Auth: ZHJwbUB3YW5hZG9vLmZy X-ME-Date: Sun, 21 Feb 2016 15:36:24 +0100 X-ME-IP: 2.2.219.34 Original-Received: by micropit.roche-blanche.homenet.org (Postfix, from userid 1000) id 7D2E5F214; Sun, 21 Feb 2016 15:36:21 +0100 (CET) In-Reply-To: <87wppywbaz.fsf@roche-blanche.net> ("Peter =?UTF-8?Q?M=C3=BCnster?="'s message of "Sun, 21 Feb 2016 12:30:12 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) 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:113409 Archived-At: The problem seems to be string-match: (defun my-parse-time-string-test () (let (case-fold-search) (string-match "x" "x"))) (let ((gc-cons-threshold most-positive-fixnum)) (benchmark-run 1 (dotimes (i 100000) (my-parse-time-string-test)))) Fast emacs: (0.094749241 0 0.0) Slow emacs: (1.802927531 0 0.0) -- Peter