From: Chris Worley Date: Tue, 16 Jun 2015 15:30:59 +0000 (-0600) Subject: HOWTO: make it clear that deviation is standard deviation X-Git-Tag: fio-2.2.9~5 X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=d86ae56c2995f90b5ac38de981d6f46114dabdf3;ds=sidebyside HOWTO: make it clear that deviation is standard deviation Signed-off-by: Jens Axboe --- diff --git a/HOWTO b/HOWTO index 61ebe5e9..b823eaed 100644 --- a/HOWTO +++ b/HOWTO @@ -1956,18 +1956,18 @@ Split up, the format is as follows: terse version, fio version, jobname, groupid, error READ status: Total IO (KB), bandwidth (KB/sec), IOPS, runtime (msec) - Submission latency: min, max, mean, deviation (usec) - Completion latency: min, max, mean, deviation (usec) + Submission latency: min, max, mean, stdev (usec) + Completion latency: min, max, mean, stdev (usec) Completion latency percentiles: 20 fields (see below) - Total latency: min, max, mean, deviation (usec) - Bw (KB/s): min, max, aggregate percentage of total, mean, deviation + Total latency: min, max, mean, stdev (usec) + Bw (KB/s): min, max, aggregate percentage of total, mean, stdev WRITE status: Total IO (KB), bandwidth (KB/sec), IOPS, runtime (msec) - Submission latency: min, max, mean, deviation (usec) - Completion latency: min, max, mean, deviation (usec) + Submission latency: min, max, mean, stdev (usec) + Completion latency: min, max, mean, stdev(usec) Completion latency percentiles: 20 fields (see below) - Total latency: min, max, mean, deviation (usec) - Bw (KB/s): min, max, aggregate percentage of total, mean, deviation + Total latency: min, max, mean, stdev (usec) + Bw (KB/s): min, max, aggregate percentage of total, mean, stdev CPU usage: user, system, context switches, major faults, minor faults IO depths: <=1, 2, 4, 8, 16, 32, >=64 IO latencies microseconds: <=2, 4, 10, 20, 50, 100, 250, 500, 750, 1000