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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: good way to measure and confirm.
Date Thu, 07 Mar 2013 19:22:09 GMT
Hi Patai,

You might think about installing Ganglia. That will give you all the
details of the CPU usage. user vs io vs idle, etc.


2013/3/7 Patai Sangbutsarakum <silvianhadoop@gmail.com>:
> Good morning Hadoopers!
> I am finding the way to prove that our cluster has cpu bound but not
> io bound. Diamond + Graphite is in place and been collected for
> months.
> I believe the CPU i could do %user, but how about the IO ? what would
> be the metric that can represent the IO utilization and prove that we
> are hit CPU bound rather than IO bound.
> I know this is easy question for most of you guys.. i am just want to
> learn from the best..
> Thanks you + Regards,
> Patai

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