Date: Mon, 24 Nov 2008 11:27:12 +0200 From: Nikolay Denev <ndenev@gmail.com> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-current@freebsd.org Subject: Re: HEADS UP: New ZFS in the tree. Message-ID: <8517A9FD-6420-413A-9190-10F3969DEF95@gmail.com> In-Reply-To: <20081122230554.GC2016@garage.freebsd.pl> References: <20081117205526.GC1733@garage.freebsd.pl> <8ECD400F-BFE3-4E31-94F0-39AF5F44FDAC@gmail.com> <20081119090307.GA81236@icarus.home.lan> <alpine.BSF.2.00.0811190323110.59299@borg> <FD98E80A-30DC-4700-9C0F-0D77835DBB32@gmail.com> <18E318DD-29FA-4E26-89CF-11B893B42E34@gmail.com> <20081121162518.GC6509@garage.freebsd.pl> <20081122230554.GC2016@garage.freebsd.pl>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 23 Nov, 2008, at 01:05 , Pawel Jakub Dawidek wrote: > On Fri, Nov 21, 2008 at 05:25:18PM +0100, Pawel Jakub Dawidek wrote: >> On Wed, Nov 19, 2008 at 01:58:49PM +0200, Nikolay Denev wrote: >>> -----BEGIN PGP SIGNED MESSAGE----- >>> Hash: SHA1 >>> >>> >>> On 19 Nov, 2008, at 11:48 , Nikolay Denev wrote: >>>> >>>> Well, it looks like that on -current and a 4G amd64 machine >>>> probably >>>> there is no need >>>> to tune anything. Here are my defaults with everything vm and zfs >>>> related in loader.conf commented : >>>> >>>> vm.kmem_size_max: 4509713203 >>>> vfs.zfs.arc_max: 863907840 >>>> >>> >>> I was able to panic it again with "kmem_map too small" with these >>> settings (defaults). >>> >>> This are the bonnie++ arguments that i've used: >>> bonnie++ -d /tank -c 4 -r 4096 -x 9999999 -u 0:0 >> >> I wasn't able to panic my test machine running this command on i386 >> machine with this in /boot/loader.conf: >> >> vm.kmem_size=1073741824 >> vm.kmem_size_max=1073741824 >> >> (1GB) >> >> Although I now found that you were trying raidz2 and I had two two- >> way >> mirrors. I'm retrying now. > > Ok, I tried RAIDZ2 on top of five disks - no panics. > > -- > Pawel Jakub Dawidek http://www.wheel.pl > pjd@FreeBSD.org http://www.FreeBSD.org > FreeBSD committer Am I Evil? Yes, I Am! My test machine is still running the bonnie++ loop that i've started on friday, with only vfs.zfs.arc_max=512M in loader.conf. Seems pretty stable. I'll retry just one more time without the vfs.zfs.arc_max tunable to see if it's going to panic again. - -- Regards, Nikolay Denev -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (Darwin) iEYEARECAAYFAkkqc3EACgkQHNAJ/fLbfrn3uQCeIBwfLIRYcA1/BaR8mxAy5yX0 pW4AoIhH93PIUhTN+cnqTXMHJY0OnAoU =KpHs -----END PGP SIGNATURE-----
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