Date: Sat, 03 Oct 2009 13:53:55 +0100 From: Alex Trull <alex@trull.org> To: Artem Belevich <fbsdlist@src.cx> Cc: freebsd-fs@freebsd.org, Alexander Shevchenko <pepelac@gmail.com> Subject: Re: ARC & L2ARC efficiency Message-ID: <1254574435.7247.15.camel@porksoda.turandot.home> In-Reply-To: <ed91d4a80910011620y73f931c9ie1e41692d6fc46e3@mail.gmail.com> References: <8c9ae7950910011322j1a6b66fcp73615cc17ae20328@mail.gmail.com> <ed91d4a80910011600x3f3e855etd24694bde69a96c7@mail.gmail.com> <ed91d4a80910011620y73f931c9ie1e41692d6fc46e3@mail.gmail.com>
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--=-q41iUhPpdx33qog7nLO5 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable I went straight for munin since I like to track these stats long term along with everything else going on - there are some older scripts I put on muninexchange but since zfs13 came to 7. I split and updated them to handle the newer counters including l2arc: scripts zfs-* : http://trull.org/~alex/src/FreeBSD/muninplugins/ example graphs (forgive the amazingly redundant path) : http://web.internationalconspiracy.org/munin/internationalconspiracy.org/po= tjie.internationalconspiracy.org.html#Filesystem If you want to see more short term performance stats with a while running a filesystem benchmark test (or just under normal load) I recommend 'zpool iostat -v poolname N' where poolname is obvious and N is the number of seconds for refresh. This not only shows IO read and write but also the throughput per disk, including the l2arc cache. -- Alex On Thu, 2009-10-01 at 16:20 -0700, Artem Belevich wrote: > Here's another script: > http://www.solarisinternals.com/wiki/index.php/Arcstat >=20 > Attached hacked FreeBSD version. >=20 > --Artem >=20 >=20 >=20 > On Thu, Oct 1, 2009 at 4:00 PM, Artem Belevich <fbsdlist@src.cx> wrote: > > There's a pretty useful script to present ARC stats (alas, L2ARC info > > is not included) in a readable way: > > http://cuddletech.com/arc_summary/ > > > > I've attaches somewhat hacked (and a bit outdated) version that runs on= FreeBSD. > > > > --Artem > > > > > > > > On Thu, Oct 1, 2009 at 1:22 PM, Alexander Shevchenko <pepelac@gmail.com= > wrote: > >> Good time of day! > >> > >> How could i check the efficiency of ARC? > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" --=-q41iUhPpdx33qog7nLO5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkrHSWAACgkQey4m6/eWxTTykwCfcKpKcR0+1NaL/2d4LsA5MfKP gPsAn0cSEf2GrVuhyKEsNYpAKOWyZqVj =r5mw -----END PGP SIGNATURE----- --=-q41iUhPpdx33qog7nLO5--
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