Date: Tue, 19 Jan 2010 10:57:49 -0300 From: Jorge Medina <jorge@bsdchile.cl> To: Sherin George <list@sheringeorge.co.cc> Cc: freebsd-questions@freebsd.org Subject: Re: Setting "zfs_arc_max" value in FreeBSD 8. Message-ID: <28d0e6b81001190557i36a42bc3q4e648d1348d2d178@mail.gmail.com> In-Reply-To: <7f14551c1001190119l62e3e38fx63b2f69036f463f3@mail.gmail.com> References: <7f14551c1001190119l62e3e38fx63b2f69036f463f3@mail.gmail.com>
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On Tue, Jan 19, 2010 at 6:19 AM, Sherin George <list@sheringeorge.co.cc>wro= te: > Hello, > > I am trying to tune ZFS file system by setting "zfs_arc_max" value in > FreeBSD 8. > > In solaris, it is achieved like this > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > For example, if an application needs 5 GBytes of memory on a system with > 36-GBytes of memory, you could set the arc maximum to 30 GBytes, > (0x780000000 or 32212254720 bytes). Set the zfs:zfs_arc_max parameter in > the > /etc/system file: > > set zfs:zfs_arc_max =3D 0x780000000 > > or > > set zfs:zfs_arc_max =3D 32212254720 > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > But, I couldn't find /etc/system file in FreeBSD. > > Could some one please guide me to correctly configure "zfs_arc_max" in > FreeBSD 8. > > set in /etc/sysctl.conf man sysctl.conf --=20 Jorge Andr=E9s Medina Oliva.
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