From owner-freebsd-current@freebsd.org Tue Jul 28 08:28:53 2015 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3B9E99AA78D for ; Tue, 28 Jul 2015 08:28:53 +0000 (UTC) (envelope-from guru@unixarea.de) Received: from ms-10.1blu.de (ms-10.1blu.de [178.254.4.101]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id EBF09E1F; Tue, 28 Jul 2015 08:28:52 +0000 (UTC) (envelope-from guru@unixarea.de) Received: from [89.204.130.140] (helo=localhost.unixarea.de) by ms-10.1blu.de with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1ZK0Fc-00028e-Fx; Tue, 28 Jul 2015 10:28:41 +0200 Received: from localhost.my.domain (c720-r276659 [127.0.0.1]) by localhost.unixarea.de (8.14.9/8.14.9) with ESMTP id t6S8SdiH002551 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 28 Jul 2015 10:28:39 +0200 (CEST) (envelope-from guru@unixarea.de) Received: (from guru@localhost) by localhost.my.domain (8.14.9/8.14.9/Submit) id t6S8SdQc002550; Tue, 28 Jul 2015 10:28:39 +0200 (CEST) (envelope-from guru@unixarea.de) X-Authentication-Warning: localhost.my.domain: guru set sender to guru@unixarea.de using -f Date: Tue, 28 Jul 2015 10:28:39 +0200 From: Matthias Apitz To: David Chisnall Cc: Slawa Olhovchenkov , freebsd-current@freebsd.org Subject: Re: duration of buildworld Message-ID: <20150728082839.GA2521@c720-r276659> Reply-To: Matthias Apitz Mail-Followup-To: Matthias Apitz , David Chisnall , Slawa Olhovchenkov , freebsd-current@freebsd.org References: <20150727055804.GA2312@c720-r276659> <20150727120006.GJ43740@zxy.spb.ru> <20150727184704.GA1777@c720-r276659> <20150727193410.GX44094@zxy.spb.ru> <20150727194039.GA2298@c720-r276659> <20150727194954.GY44094@zxy.spb.ru> <8E86BFED-FE49-495D-B2F4-B6D2F0CB9DFA@FreeBSD.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8E86BFED-FE49-495D-B2F4-B6D2F0CB9DFA@FreeBSD.org> X-Operating-System: FreeBSD 11.0-CURRENT r269739 (i386) User-Agent: Mutt/1.5.23 (2014-03-12) X-Con-Id: 51246 X-Con-U: 0-guru X-Originating-IP: 89.204.130.140 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jul 2015 08:28:53 -0000 El día Tuesday, July 28, 2015 a las 09:20:38AM +0100, David Chisnall escribió: > It sounds as if the swap was working (as the build took a long time, it didn’t run out of memory). My guess would be that, before the reboot, something had wired (or, if not, then touched frequently enough to keep it in core) a large chunk of memory, which forced the swapping. Swap files are expected to be slower than swap partitions (though if you’re swapping to a disk, the seek times are likely to dominate in both cases). > > I don’t suppose there’s capture of the output of top from before the reboot? No, I did not saved it. When I started the buildworld, I started in parallel already a poudriere jail to build around 1600 ports. Later, when I realized that the buildworld took so long, I stopped (killed) the poudriere jail. IIRC the "swapctl -l" showed before the boot that the swap files have been used. I could re-create the situation on next buildworld. matthias -- Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ ☎ +49-176-38902045 No! Nein! ¡No! Όχι! -- Ευχαριστούμε!