Date: Tue, 6 Mar 2018 08:40:10 -0800 (PST) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: =?ISO-8859-1?Q?Trond_Endrest=F8l?= <Trond.Endrestol@fagskolen.gjovik.no> Cc: FreeBSD current <freebsd-current@freebsd.org> Subject: Re: Strange ARC/Swap/CPU on yesterday's -CURRENT Message-ID: <201803061640.w26GeA4g049742@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <alpine.BSF.2.21.1803060854330.97064@mail.fig.ol.no>
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> On Mon, 5 Mar 2018 14:39-0600, Larry Rosenman wrote: > > > Upgraded to: > > > > FreeBSD borg.lerctr.org 12.0-CURRENT FreeBSD 12.0-CURRENT #11 r330385: Sun Mar 4 12:48:52 CST 2018 root@borg.lerctr.org:/usr/obj/usr/src/amd64.amd64/sys/VT-LER amd64 > > +1200060 1200060 > > > > Yesterday, and I'm seeing really strange slowness, ARC use, and SWAP use and swapping. > > > > See http://www.lerctr.org/~ler/FreeBSD/Swapuse.png > > I see these symptoms on stable/11. One of my servers has 32 GiB of > RAM. After a reboot all is well. ARC starts to fill up, and I still > have more than half of the memory available for user processes. > > After running the periodic jobs at night, the amount of wired memory > goes sky high. /etc/periodic/weekly/310.locate is a particular nasty > one. I would like to find out if this is the same person I have reporting this problem from another source, or if this is a confirmation of a bug I was helping someone else with. Have you been in contact with Michael Dexter about this issue, or any other forum/mailing list/etc? If not then we have at least 2 reports of this unbound wired memory growth, if so hopefully someone here can take you further in the debug than we have been able to get. > > Limiting the ARC to, say, 16 GiB, has no effect of the high amount of > wired memory. After a few more days, the kernel consumes virtually all > memory, forcing processes in and out of the swap device. Our experience as well. ... Thanks, -- Rod Grimes rgrimes@freebsd.org
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