Date: Sun, 21 Jun 2020 14:48:51 +0200 (CEST) From: Ronald Klop <ronald-lists@klop.ws> To: Michael Grimm <trashcan@ellael.org>, FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: Buildworld and buildkernel with very slow compilation, recently Message-ID: <816278512.11586.1592743731465@localhost> In-Reply-To: <2D4CD117-99D0-4A03-8FBC-002CDFFE64F9@ellael.org>
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Building ports/pkgs is also significantly slower on 13 (new clang) than on 12.1. http://thunderx1.nyi.freebsd.org/ 13 = 140 hours12.1 = 103 hoursFor roughly the same amount of ports. Regards, Ronald Van: Michael Grimm <trashcan@ellael.org> Datum: 21 juni 2020 14:12 Aan: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Onderwerp: Buildworld and buildkernel with very slow compilation, recently > > > Hi, > > I am following FreeBSD 12.1-STABLE. > > Clang has been upgraded to version 10.0.0 on May, 1st, and ever since that time, I do observe a dramatic increase in compilation times of building world, kernel and ports. I didn't benchmark the exact times, but compilation times are at least increased by a factor of 1.5. Nothing has changed of the last month besides upgrading 12.1-Stable every other week. > > Has anyone else been bitten by this? > > Regards, > Michael > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > > > From owner-freebsd-stable@freebsd.org Sun Jun 21 13:02:40 2020 Return-Path: <owner-freebsd-stable@freebsd.org> Delivered-To: freebsd-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EE9C634EE3E for <freebsd-stable@mailman.nyi.freebsd.org>; Sun, 21 Jun 2020 13:02:40 +0000 (UTC) (envelope-from yasu@utahime.org) Received: from gate.utahime.jp (gate.utahime.jp [183.180.29.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 49qXl25rvRz3gTL for <freebsd-stable@freebsd.org>; 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Sun, 21 Jun 2020 22:02:25 +0900 (JST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.102.3 at eastasia.home.utahime.org Date: Sun, 21 Jun 2020 22:00:20 +0900 (JST) Message-Id: <20200621.220020.1916748464498392515.yasu@utahime.org> To: ronald-lists@klop.ws Cc: trashcan@ellael.org, freebsd-stable@freebsd.org Subject: Re: Buildworld and buildkernel with very slow compilation, recently From: Yasuhiro KIMURA <yasu@utahime.org> In-Reply-To: <816278512.11586.1592743731465@localhost> References: <2D4CD117-99D0-4A03-8FBC-002CDFFE64F9@ellael.org> <816278512.11586.1592743731465@localhost> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 49qXl25rvRz3gTL X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=utahime.org header.s=maybe2019112701 header.b=u2dgypHD; dmarc=none; spf=pass (mx1.freebsd.org: domain of yasu@utahime.org designates 183.180.29.210 as permitted sender) smtp.mailfrom=yasu@utahime.org X-Spamd-Result: default: False [-2.22 / 15.00]; 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List-Post: <mailto:freebsd-stable@freebsd.org> List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-stable>, <mailto:freebsd-stable-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sun, 21 Jun 2020 13:02:41 -0000 From: Ronald Klop <ronald-lists@klop.ws> Subject: Re: Buildworld and buildkernel with very slow compilation, recently Date: Sun, 21 Jun 2020 14:48:51 +0200 (CEST) > Building ports/pkgs is also significantly slower on 13 (new clang) > than on 12.1. > http://thunderx1.nyi.freebsd.org/ > 13 = 140 hours12.1 = 103 hoursFor roughly the same amount of ports. >From /usr/src/UPDATING of head: NOTE TO PEOPLE WHO THINK THAT FreeBSD 13.x IS SLOW: FreeBSD 13.x has many debugging features turned on, in both the kernel and userland. These features attempt to detect incorrect use of system primitives, and encourage loud failure through extra sanity checking and fail stop semantics. They also substantially impact system performance. If you want to do performance measurement, benchmarking, and optimization, you'll want to turn them off. This includes various WITNESS- related kernel options, INVARIANTS, malloc debugging flags in userland, and various verbose features in the kernel. Many developers choose to disable these features on build machines to maximize performance. (To completely disable malloc debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely disable the most expensive debugging functionality run "ln -s 'abort:false,junk:false' /etc/malloc.conf".) --- Yasuhiro KIMURA
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