From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#18522: 24.4.50; mapcar is very slow Date: Wed, 24 Feb 2016 19:39:09 +0200 Message-ID: <83vb5egg8y.fsf@gnu.org> References: <8738bkdjqg.fsf@micropit.roche-blanche.homenet.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> <87d1rquo4a.fsf@roche-blanche.net> <878u2eun9o.fsf@roche-blanche.net> <834md2niqt.fsf@gnu.org> <87k2lyszy2.fsf@roche-blanche.net> <83bn79n66p.fsf@gnu.org> <87vb5hry9y.fsf@roche-blanche.net> <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> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; 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Wed, 24 Feb 2016 12:39:12 -0500 In-reply-to: <87twkypfqx.fsf@roche-blanche.net> (message from Peter =?UTF-8?Q?M=C3=BCnster?= on Wed, 24 Feb 2016 11:25:10 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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:113726 Archived-At: > From: Peter Münster > Cc: rudalics@gmx.at, larsi@gnus.org, 18522@debbugs.gnu.org > Date: Wed, 24 Feb 2016 11:25:10 +0100 > > On Tue, Feb 23 2016, Eli Zaretskii wrote: > > > We need to time that loop to be sure. Can you do that with 'perf', > > How please? "perf annotate", perhaps? > > or add a call to gettimeofday before and after, and see how much time > > it takes as the list of buffers grows? > > Then, I would need to restart emacs. If it's possible to measure the > time without restarting it, that would be better. Yes, of course.