[rrd-users] I/O Read overkill

Jason Fesler jfesler at gigo.com
Sun Oct 28 15:34:47 CET 2007

> So I went from 120 to 512. Does that mean 4.266 times more data was being read
> off the drive?

Yes, but only when the OS decided you were doing sequential enough reads 
to gamble doing so.

> Now that I use rrdtool 1.2.99999[...] the read value dropped even further:
> 84KB/s, which is consistent with the announcement by the author (10x more
> updates per second).

I haven't gone to this yet (I'm no longer responsible for the ~250 ide 
disks running rrd..) but it it sure does sound promising.

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