Date: Thu, 29 Aug 2013 14:58:50 -0700 From: Freddie Cash <fjwcash@gmail.com> To: Eric Browning <ericbrowning@skaggscatholiccenter.org> Cc: FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: NFS on ZFS pure SSD pool Message-ID: <CAOjFWZ5dRTybK=Wg7MWQZS%2B1JVCue0DjkWLu5asRp%2BkxZPdgZQ@mail.gmail.com> In-Reply-To: <CAM=5oeCDScex=dv6NXM415MkUu3_qrnAm0DX3r7M8CoYzvUYsw@mail.gmail.com> References: <CAOFF%2BZ3jNvnWbE5C8LarRE7-SQbB4Q9NJTn01J=FGP9uppKdaw@mail.gmail.com> <1079189088.15197172.1377784177805.JavaMail.root@uoguelph.ca> <CAOFF%2BZ0SRDUNuaT73e4jU%2BFZESR35OS8Vo9cU-bV2-zn-HhWDw@mail.gmail.com> <CAOjFWZ6sigqx8LxMHmDvvH7XoNi-GCW=q1YzoXUoDq%2BOOBsC9Q@mail.gmail.com> <877gf4cj7o.wl%berend@pobox.com> <CAM=5oeCDScex=dv6NXM415MkUu3_qrnAm0DX3r7M8CoYzvUYsw@mail.gmail.com>
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On Thu, Aug 29, 2013 at 2:55 PM, Eric Browning < ericbrowning@skaggscatholiccenter.org> wrote: > sysctl vfs.zfs.arc_meta_used yeilds: > > vfs.zfs.arc_meta_used: 6916698888 > > There is 56GB of RAM dedicated to ARC > So that's using the full 12.5% (one eighth) of the ARC. Depending on how efficient your ARC is (high data hit rates, low data hit rates, low actual memory usage, etc), you may want to test increasing this to see if it helps with the NFS cache hit rates stuff.
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