Date: Mon, 29 Oct 2007 14:50:33 -0500 From: Brooks Davis <brooks@freebsd.org> To: Dmitry Morozovsky <marck@rinet.ru> Cc: stable@freebsd.org Subject: Re: rrdtool performance tuning (fwd) Message-ID: <20071029195033.GA87137@lor.one-eyed-alien.net> In-Reply-To: <20071029111235.E69594@woozle.rinet.ru> References: <20071029111235.E69594@woozle.rinet.ru>
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[-- Attachment #1 --] On Mon, Oct 29, 2007 at 11:13:09AM +0300, Dmitry Morozovsky wrote: > > [hmm, after thinking a bit I decided it would be more appropriate here, in > stable@] > > Dear colleagues, > > any hints to tune rrdtool with ~30k rrd files (approx 2k target devices)? > > machine is mostly IO-bound, showing 100% disk load with 8 or sometimes even 3 > mB/s, 300-400 tps (it's 2 SATA300 disks in gmirror) Store it on a memory file system and take periodic snapshots. The format is hopeless for large numbers of updates. The ganglia port's startup scripts show an example of doing this. -- Brooks [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFHJjmJXY6L6fI4GtQRAnxPAKCSCyijG7VzR7Robg/RBJWkXmrBTQCglIuX 7M5ed4houKhcGWyqzD5twYU= =QvNP -----END PGP SIGNATURE-----
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