Date: Fri, 21 Jan 2011 16:04:13 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: jackie wang <jackieit@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: Freebsd8.1 ZFS with mfi driver performance Message-ID: <20110121150413.GE1698@garage.freebsd.pl> In-Reply-To: <AANLkTi=AkA0xaGJh4=pZXX5VU57aPsAKeBPQzrZj1zwJ@mail.gmail.com> References: <AANLkTi=AkA0xaGJh4=pZXX5VU57aPsAKeBPQzrZj1zwJ@mail.gmail.com>
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--FoLtEtfbNGMjfgrs Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 20, 2011 at 09:57:33PM +0800, jackie wang wrote: > more /boot/loader.conf >=20 > VS001# more /boot/loader.conf > zfs_load=3D"YES" > vfs.root.mountfrom=3D"zfs:zroot" > geom_mirror_load=3D"YES" > #vm.kmem_size=3D"4096M" > #vm.kmem_size_max=3D"3072M" Why you commented those out? Try adding: vm.kmem_size=3D"4096M" > vfs.zfs.arc_min=3D"1024M" > vfs.zfs.arc_max=3D"4096M" > #vfs.zfs.vdev.cache.size=3D"5M" > vfs.zfs.vdev.min_pending=3D"1" > vfs.zfs.vdev.max_pending=3D"1" > vfs.zfs.prefetch_disable=3D"1" > vfs.zfs.txg.timeout=3D"5" > vfs.zfs.txg.synctime=3D"1" > vfs.zfs.txg.write_limit_override=3D"524288000" >=20 > when the system slow there much mermory in wired status about 5GB, and > the system begin to use swap. >=20 > So,my question is why the zfs slow . Please Help ,now the box is in > production env. Could you explain all your settings there? I'd start from removing all of them and just leaving kmem_size. --=20 Pawel Jakub Dawidek http://www.wheelsystems.com pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --FoLtEtfbNGMjfgrs Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAk05oG0ACgkQForvXbEpPzTsGACgvc2tWQAGcxhRD1AOKukgmTlI Xv0AnRknd9E1Y66rRix5CE/DgKG7JI4G =UwBK -----END PGP SIGNATURE----- --FoLtEtfbNGMjfgrs--
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