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: Mon, 22 Sep 2014 15:47:56 +0200 Message-ID: <87mw9rdawj.fsf@micropit.roche-blanche.homenet.org> References: <8738bkdjqg.fsf@micropit.roche-blanche.homenet.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1411393792 25902 80.91.229.3 (22 Sep 2014 13:49:52 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 22 Sep 2014 13:49:52 +0000 (UTC) Cc: 18522@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Sep 22 15:49:45 2014 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 1XW3zm-00063D-Hx for geb-bug-gnu-emacs@m.gmane.org; Mon, 22 Sep 2014 15:49:38 +0200 Original-Received: from localhost ([::1]:46761 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XW3zm-00019b-6v for geb-bug-gnu-emacs@m.gmane.org; Mon, 22 Sep 2014 09:49:38 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:33361) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XW3zU-0000zg-Nl for bug-gnu-emacs@gnu.org; Mon, 22 Sep 2014 09:49:35 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XW3zH-0004Am-IM for bug-gnu-emacs@gnu.org; Mon, 22 Sep 2014 09:49:20 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:56699) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XW3zH-00046O-EQ for bug-gnu-emacs@gnu.org; Mon, 22 Sep 2014 09:49:07 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XW3zB-0007wY-TT for bug-gnu-emacs@gnu.org; Mon, 22 Sep 2014 09:49:01 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: <8738bkdjqg.fsf@micropit.roche-blanche.homenet.org> Resent-From: Peter =?UTF-8?Q?M=C3=BCnster?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 22 Sep 2014 13:49:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18522 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18522-submit@debbugs.gnu.org id=B18522.141139368330465 (code B ref 18522); Mon, 22 Sep 2014 13:49:01 +0000 Original-Received: (at 18522) by debbugs.gnu.org; 22 Sep 2014 13:48:03 +0000 Original-Received: from localhost ([127.0.0.1]:48263 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XW3yE-0007vI-V5 for submit@debbugs.gnu.org; Mon, 22 Sep 2014 09:48:03 -0400 Original-Received: from smtp02.smtpout.orange.fr ([80.12.242.124]:21472 helo=smtp.smtpout.orange.fr) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XW3yB-0007us-Pb for 18522@debbugs.gnu.org; Mon, 22 Sep 2014 09:48:00 -0400 Original-Received: from micropit.roche-blanche.homenet.org ([2.11.45.171]) by mwinf5d49 with ME id uDnw1o00D3hbdka03Dnwnt; Mon, 22 Sep 2014 15:47:58 +0200 X-ME-Helo: micropit.roche-blanche.homenet.org X-ME-Auth: ZHJwbUB3YW5hZG9vLmZy X-ME-Date: Mon, 22 Sep 2014 15:47:58 +0200 X-ME-IP: 2.11.45.171 Original-Received: by micropit.roche-blanche.homenet.org (Postfix, from userid 1000) id 1A759A616B7; Mon, 22 Sep 2014 15:47:56 +0200 (CEST) User-Agent: Gnus/5.130012 (=?UTF-8?Q?=E7=9C=9F?= Gnus v0.12) Emacs/24.4.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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:93626 Archived-At: On Mon, Sep 22 2014, Stefan Monnier wrote: > the time for mapcar includes the time spent in the function passed to > mapcar, which is where most of the time is likely spent anyway. Yes. The function is: (lambda (header) (gnus-float-time (gnus-date-get-time (mail-header-date header)))) I've checked all 3 functions (gnus-float-time, gnus-date-get-time and mail-header-date) with ELP, but emacs did not spend any significant time in these 3 functions... > Could you use the native, sampling, profiler instead of ELP? > > - M-x profiler-start RET RET > - ... reproduce the slow operation ... > - M-x profiler-report RET > - C-u RET on the first entry to unfold it Yes. I'll do that in some days, when mapcar becomes slow again. -- Peter