Date: Tue, 30 Oct 2007 12:32:42 +0300 (MSK) From: Dmitry Morozovsky <marck@rinet.ru> To: Brooks Davis <brooks@freebsd.org> Cc: stable@freebsd.org Subject: Re: rrdtool performance tuning (fwd) Message-ID: <20071030123100.K39332@woozle.rinet.ru> In-Reply-To: <20071029195033.GA87137@lor.one-eyed-alien.net> References: <20071029111235.E69594@woozle.rinet.ru> <20071029195033.GA87137@lor.one-eyed-alien.net>
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On Mon, 29 Oct 2007, Brooks Davis wrote: BD> On Mon, Oct 29, 2007 at 11:13:09AM +0300, Dmitry Morozovsky wrote: BD> > BD> > [hmm, after thinking a bit I decided it would be more appropriate here, in BD> > stable@] BD> > BD> > Dear colleagues, BD> > BD> > any hints to tune rrdtool with ~30k rrd files (approx 2k target devices)? BD> > BD> > machine is mostly IO-bound, showing 100% disk load with 8 or sometimes even 3 BD> > mB/s, 300-400 tps (it's 2 SATA300 disks in gmirror) BD> BD> Store it on a memory file system and take periodic snapshots. The format is BD> hopeless for large numbers of updates. The ganglia port's startup scripts show BD> an example of doing this. I thought about this, but total size of these files is already more than memory, and I'm not sure md would be suitable for this. Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------
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