From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ihor Radchenko Newsgroups: gmane.emacs.bugs Subject: bug#58558: 29.0.50; re-search-forward is slow in some buffers Date: Wed, 14 Dec 2022 13:26:15 +0000 Message-ID: <87sfhit8ug.fsf@localhost> References: <877d10r21x.fsf@localhost> <87ilkk6ri5.fsf@localhost> <87v8okjei9.fsf@gnus.org> <87tu44jdce.fsf@localhost> <87czasjd9j.fsf@gnus.org> <87k050nio5.fsf@localhost> <87zgdwhw0z.fsf@gnus.org> <83sfjo3tfw.fsf@gnu.org> <878rlfjmjh.fsf@localhost> <87mt9tbbbp.fsf@gnus.org> <8335bl18lo.fsf@gnu.org> <87wn8x9eqb.fsf@gnus.org> <87tu1zd2c6.fsf@localhost> <83h6xzphxm.fsf@gnu.org> <87wn6vbfaa.fsf@localhost> <838rjbpecw.fsf@gnu.org> <87fsdjwb4e.fsf@localhost> <874jtyuqax.fsf@localhost> <83zgbqm8q6.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34745"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 58558@debbugs.gnu.org, larsi@gnus.org, monnier@iro.umontreal.ca To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Dec 14 14:27:51 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1p5Rna-0008on-6J for geb-bug-gnu-emacs@m.gmane-mx.org; Wed, 14 Dec 2022 14:27:50 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p5RnA-0003ZP-N2; Wed, 14 Dec 2022 08:27:24 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p5Rmq-0003On-Az for bug-gnu-emacs@gnu.org; Wed, 14 Dec 2022 08:27:12 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1p5Rmo-0007x4-7j for bug-gnu-emacs@gnu.org; Wed, 14 Dec 2022 08:27:04 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1p5Rmn-0000Uo-R2 for bug-gnu-emacs@gnu.org; Wed, 14 Dec 2022 08:27:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Ihor Radchenko Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 14 Dec 2022 13:27:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 58558 X-GNU-PR-Package: emacs Original-Received: via spool by 58558-submit@debbugs.gnu.org id=B58558.16710243851888 (code B ref 58558); Wed, 14 Dec 2022 13:27:01 +0000 Original-Received: (at 58558) by debbugs.gnu.org; 14 Dec 2022 13:26:25 +0000 Original-Received: from localhost ([127.0.0.1]:39264 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1p5RmD-0000UO-2C for submit@debbugs.gnu.org; Wed, 14 Dec 2022 08:26:25 -0500 Original-Received: from mout01.posteo.de ([185.67.36.65]:47497) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1p5RmB-0000UG-8l for 58558@debbugs.gnu.org; Wed, 14 Dec 2022 08:26:23 -0500 Original-Received: from submission (posteo.de [185.67.36.169]) by mout01.posteo.de (Postfix) with ESMTPS id B84EE240028 for <58558@debbugs.gnu.org>; Wed, 14 Dec 2022 14:26:17 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1671024377; bh=F6yTpFQ14sJ1p8RYQumE8TsKucxQfudisXqy/96cSkk=; h=From:To:Cc:Subject:Date:From; b=rWI++15xv8st3Ht5+oFvLnWie7u1LX446pPcGDJmBw06nQPvzq4EwgeZhOzRk9Kl4 sl879+wNfGboaetOXTn2v6cV3RabjQlX4hNoMrAFB4cx4NcE7dxsjbHtW1eEuO4+DZ G3v/Ftg/zAqJRIJCFnL38vPQ0BLtpOVucC2sxEAOYANPgmAWZDetPDm+w530mNpMzT +1pkI0jDG+RwhUVVa6cP4eDHIEmkIn5FSKjrMYhk7OQk9U/NPqY+jcb6sN5yM5DARX DQsqMdh5mGeI25yOlz/ea8uJOTxvPNy6VdgfWK71+6wg9cyqTievZJ277Sm271QiAO CzHPir7P4+ZPg== Original-Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4NXGN91HH2z6tmK; Wed, 14 Dec 2022 14:26:17 +0100 (CET) In-Reply-To: <83zgbqm8q6.fsf@gnu.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:250942 Archived-At: Eli Zaretskii writes: >> Combined with the fact that calling `garbage-collect' between benchmarks >> makes the benchmark time nearly constant, this result may or may not >> mean something. > > Is the "almost constant" time still significantly slower thane in > previous versions? Or is it similar? It is orders of magnitude slower: sub-second in Emacs 28; seconds in Emacs 29 fresh session; tens of seconds after several hours of Emacs usage. > Anyway, the fact that the time doesn't get worse when you GC between > benchmark most probably means that we produce a lot of garbage markers > (i.e., temporary markers that very quickly become unreferenced), and > they get in the way of buf_bytepos_to_charpos. Most likely, but it is only part of the problem. If these temporary markers where the only problem, I would not see gradual performance degradation as I continue Emacs session (`garbage-collect` is called anyway during normal usage). -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at