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Date:      Thu, 01 Nov 2007 02:19:20 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-stable@freebsd.org
Subject:   Re: rrdtool performance tuning (fwd)
Message-ID:  <fgb9ir$kq4$1@ger.gmane.org>
In-Reply-To: <20071029111235.E69594@woozle.rinet.ru>
References:  <20071029111235.E69594@woozle.rinet.ru>

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Dmitry Morozovsky wrote:
> [hmm, after thinking a bit I decided it would be more appropriate here,=
 in=20
> stable@]
>=20
> Dear colleagues,
>=20
> any hints to tune rrdtool with ~30k rrd files (approx 2k target devices=
)?
>=20
> machine is mostly IO-bound, showing 100% disk load with 8 or sometimes =
even 3=20
> mB/s, 300-400 tps (it's 2 SATA300 disks in gmirror)

If you're willing to try RELENG_7, gjournal might help you, if you put
the journal on a separate drive (i.e. separate from these two).

Other than that, maybe you could set the rrd files on an async file
system and then take periodic snapshots from that.


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