Date: Tue, 21 Feb 2017 15:45:36 +0100 From: Mateusz Guzik <mjguzik@gmail.com> To: David Wolfskill <david@catwhisker.org>, current@freebsd.org Subject: Re: Laptop very sluggish diring smoke-test @r314036 Message-ID: <20170221144536.GI26759@dft-labs.eu> In-Reply-To: <20170221143908.GT1280@albert.catwhisker.org> References: <20170221143908.GT1280@albert.catwhisker.org>
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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 <mjguzik gmail.com>
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