Date: Sat, 22 Sep 2007 03:18:47 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Michael Monashev <softsearch@gmail.com> Cc: freebsd-geom@freebsd.org Subject: Re: raidtest for zfs Message-ID: <20070922011847.GH9445@garage.freebsd.pl> In-Reply-To: <1310567292.20070921235802@gmail.com> References: <dcf881c30709210406j59603347vba8494eb5105932c@mail.gmail.com> <20070921143318.GC5690@garage.freebsd.pl> <dcf881c30709210933s6d92cb2dh830be87fb067037c@mail.gmail.com> <20070921170506.GB9445@garage.freebsd.pl> <1310567292.20070921235802@gmail.com>
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--+9faIjRurCDpBc7U Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 21, 2007 at 11:58:02PM +0400, Michael Monashev wrote: > I run: >=20 > > raidtest test -d /dev/zvol/tank/vol -n 10 -w > Read 50000 requests from raidtest.data. > Number of READ requests: 0. > Number of WRITE requests: 50000. > Number of bytes to transmit: 3281546240. > Number of processes: 10. > Bytes per second: 120195634 > Requests per second: 1831 > > zpool export tank > > zpool import tank > > raidtest test -d /dev/zvol/tank/vol -n 10 -r > Read 50000 requests from raidtest.data. > Number of READ requests: 50000. > Number of WRITE requests: 0. > Number of bytes to transmit: 3281546240. > Number of processes: 10. > Bytes per second: 69264127 > Requests per second: 1055 >=20 > Results seems too strange again. [...] What's strange about those results? Can you show us 'zpool status' and explain what you expect and why? > [...] How to turn off zfs cache completely? You can't, but for reading you just need to export/import your pool to get rid of existing cache. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --+9faIjRurCDpBc7U Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFG9G13ForvXbEpPzQRAk3SAKDpIPttImEL9UjJHMH4fKekxeugLgCfYUPU a48W71lYaterBUafVJ8od8Q= =35Bw -----END PGP SIGNATURE----- --+9faIjRurCDpBc7U--
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