rrdtool performance tuning (fwd)

Ivan Voras ivoras at freebsd.org
Thu Nov 1 01:05:29 PDT 2007

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)

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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