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Date: Fri, 11 May 2012 20:02:01 +0400
From: George Shuklin <george.shuklin@gmail.com>
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Subject: how to calculate latency for block devices?
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Good day.

How to properly calculate average latency for block devices?

(read_ticks+write_ticks)/requests or 
(read_ticks+write_ticks+time_in_queue)/requests? (Or just 
time_in_queue/requests?)

Thanks.