"samples" is the number of times this event was measured, and it happens that
these request stats are all measured together. The values to the right of the
units are min/max/sum/[sumsq] in units of microseconds, or seconds, or
requests. To work out the average request waittime is:
(sum
Why is 'samples' the same for req_waittime, req_qepth, req_active,
req_timeout all the same.
req_waittime 611801704 samples [usec] 3 5061774
1257652419050 953071357361477866
req_qdepth611801704 samples [reqs] 0 89 21110263 22332201
req_active6118017
