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Date: Sat, 30 Jul 2011 09:19:02 +0200
From: Jens Axboe <axboe@kernel.dk>
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Subject: Re: [PATCH] stats: Fix computation of standard deviation
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To: Yu-ju Hong <yjhong@google.com>
Cc: fio@vger.kernel.org, Nauman Rafique <nauman@google.com>, Eric Gouriou <egouriou@google.com>

On 2011-07-30 00:23, Yu-ju Hong wrote:
> Fix the computation of standard deviation for a group
> of jobs. Please see the below link for the
> approximation formula used.
> <http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
> 
> The formula was originally presented here:
> <ftp://reports.stanford.edu/pub/cstr/reports/cs/tr/79/773/
> CS-TR-79-773.pdf>

This is great! I completely forgot about that hack. It's one of those
things you make a note of to fix up, then forget all about it. Applied.

-- 
Jens Axboe