From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Mattias_Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.devel Subject: Re: The Emacs master is much slower than the emacs-27 branch. Date: Thu, 3 Dec 2020 21:59:39 +0100 Message-ID: References: Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8941"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Dec 03 22:01:07 2020 Return-path: Envelope-to: ged-emacs-devel@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 1kkvir-0002GI-H2 for ged-emacs-devel@m.gmane-mx.org; Thu, 03 Dec 2020 22:01:05 +0100 Original-Received: from localhost ([::1]:37216 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kkviq-0003gl-Je for ged-emacs-devel@m.gmane-mx.org; Thu, 03 Dec 2020 16:01:04 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46784) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kkvhg-000338-3g for emacs-devel@gnu.org; Thu, 03 Dec 2020 15:59:53 -0500 Original-Received: from mail176c50.megamailservers.eu ([91.136.10.186]:42696 helo=mail37c50.megamailservers.eu) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kkvhc-0002s2-Bg for emacs-devel@gnu.org; Thu, 03 Dec 2020 15:59:51 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1607029181; bh=yTv5Ndpt0iZooGG34BIDl+Pj9CZKLFS6cwEScaB1Gb4=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=sNx4fzNMQYNwnNzLtiizzPKUsBnBc8m+C4DTXWTHktkT0PkfSciS+lQ+jefUor0KI I/tUUyRe2rFCGf8ITlTC7gnw/GBBJaGYa6mhcPmEtYZ1fBuiDy6thwZYY1uc/scGcN Aee+ky/RSW8YguqRpzsKn07meMHhnEiOF9MQL4ZQ= Feedback-ID: mattiase@acm.or Original-Received: from stanniol.lan (c-064ae655.032-75-73746f71.bbcust.telenor.se [85.230.74.6]) (authenticated bits=0) by mail37c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 0B3Kxd4V023268; Thu, 3 Dec 2020 20:59:41 +0000 In-Reply-To: X-Mailer: Apple Mail (2.3445.104.17) X-CTCH-RefID: str=0001.0A782F28.5FC951BD.0073, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=YdjDGDZf c=1 sm=1 tr=0 a=Ni+dBsiEfW2GqKMPYZim9A==:117 a=Ni+dBsiEfW2GqKMPYZim9A==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=tnVqOtWOqVGTiqzhBnwA:9 a=CjuIK1q_8ugA:10 a=pHzHmUro8NiASowvMSCR:22 a=Ew2E2A-JSTLzCXPT_086:22 X-Origin-Country: SE Received-SPF: softfail client-ip=91.136.10.186; envelope-from=mattiase@acm.org; helo=mail37c50.megamailservers.eu X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:260245 Archived-At: 3 dec. 2020 kl. 19.15 skrev Alan Mackenzie : > I've got pretty much up to date copies of both the master and the > emacs-27 branches. > > When I run my customary benchmark (see below) on master's src/xdisp.c in > master, it's taking around 34s. On emacs-27, it's taking 22s. Confirmed on macOS (Mojave). > That's a massive slowdown. Does anybody know why this is happening? > Should I raise a bug report? Please do!