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[2001:470:1f08:1f7::2]) by smtp.gmail.com with ESMTPSA id o18sm31074056pgn.36.2017.02.21.06.45.42 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Tue, 21 Feb 2017 06:45:44 -0800 (PST) Date: Tue, 21 Feb 2017 15:45:36 +0100 From: Mateusz Guzik To: David Wolfskill , current@freebsd.org Subject: Re: Laptop very sluggish diring smoke-test @r314036 Message-ID: <20170221144536.GI26759@dft-labs.eu> References: <20170221143908.GT1280@albert.catwhisker.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20170221143908.GT1280@albert.catwhisker.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 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, 21 Feb 2017 14:45:45 -0000 On Tue, Feb 21, 2017 at 06:39:08AM -0800, David Wolfskill wrote: > This morning's daily "head" update & smoke-test was from: > > FreeBSD g1-252.catwhisker.org 12.0-CURRENT FreeBSD 12.0-CURRENT #263 r313988M/313991:1200021: Mon Feb 20 06:31:32 PST 2017 root@g1-252.catwhisker.org:/common/S4/obj/usr/src/sys/CANARY amd64 > > to > > FreeBSD g1-252.catwhisker.org 12.0-CURRENT FreeBSD 12.0-CURRENT #264 r314036M/314036:1200021: Tue Feb 21 05:52:20 PST 2017 root@g1-252.catwhisker.org:/common/S4/obj/usr/src/sys/CANARY amd64 > > On reboot, the system was very sluggish; unfortunately, I failed > to try to quantify that until I had already started the reboot to > stable/11 -- I had been waiting for it to finish the reboot for > around 5 minutes, watching: "Syncing disks, vnodes remaining ..." > when the thought of noting the amount of elapsed time between reports > of the numbers of remaining vnodes occurred to me: it was about 10 > seconds each. > > Normally, it's closer to 2 seconds, if that, IIRC. > > In any case, overall behavior seemed fairly consistent with that > magnitude of a slowdown overall. > Can you check if the problem IS NOT present on r313995 but IS present on r313996? Only rebuilding the kernel + modules is necessary. If the problem was not introduced by r313996 I'm afraid you will have to bisect. -- Mateusz Guzik