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From Peter Schuller <>
Subject Re: Tracking down read latency
Date Thu, 03 Feb 2011 08:21:30 GMT
> $ iostat

As rcoli already mentioned you don't seen to have an I/O problem, but
as a point of general recommendation: When determining whether you are
blocking on disk I/O, pretty much *always* use "iostat -x" rather than
the much less useful default mode of iostat. The %util and queue
wait/average time columns are massively useful/important; without them
one is much more blind as to whether or not storage devices are
actually saturated.

/ Peter Schuller

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