Date: Wed, 13 Jan 2010 12:12:09 -0600 From: "Doug Poland" <doug@polands.org> To: "Ivan Voras" <ivoras@freebsd.org> Cc: freebsd-questions@freebsd.org Subject: Re: 8.0-R-p2 ZFS: unixbench causing kmem exhaustion panic Message-ID: <b78f9b16683331ad0f574ecfc1b7f995.squirrel@email.polands.org> In-Reply-To: <hil1e8$ebs$1@ger.gmane.org> References: <8418112cdfada93d83ca0cb5307c1d21.squirrel@email.polands.org> <hil1e8$ebs$1@ger.gmane.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, January 13, 2010 11:55, Ivan Voras wrote: > Doug Poland wrote: > >> So the question is, can ZFS be tuned to not panic or hang no matter >> what I throw at it? > > Apparently not. > > > I began with a system with no tunables in /boot/loader.conf > > (vm.kmem_size and vm.kmem_size_max). Then I tried increasing > > vm.kmem_size and vm.kmem_size_max a GB at a time, until I was at > 4GB. > > Try adding vfs.zfs.arc_max=512M to /boot/loader.conf. > Would you suggest tweaking the vm.kmem_size tunables in addition to arc_max? -- Regards, Doug
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?b78f9b16683331ad0f574ecfc1b7f995.squirrel>