test: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32
...
fio-3.1
Starting 4 processes
Jobs: 4 (f=4): [m(4)][100.0%][r=38.9MiB/s,w=39.4MiB/s][r=9947,w=10.1k IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=12007: Sun Aug 12 11:52:11 2018
   read: IOPS=2502, BW=9.78MiB/s (10.2MB/s)(2049MiB/209633msec)
   bw (  KiB/s): min= 8976, max=11824, per=25.01%, avg=10006.02, stdev=226.82, samples=419
   iops        : min= 2244, max= 2956, avg=2501.49, stdev=56.71, samples=419
  write: IOPS=2499, BW=9997KiB/s (10.2MB/s)(2047MiB/209633msec)
   bw (  KiB/s): min= 9000, max=12144, per=24.97%, avg=9993.53, stdev=261.09, samples=419
   iops        : min= 2250, max= 3036, avg=2498.36, stdev=65.29, samples=419
  cpu          : usr=3.03%, sys=13.09%, ctx=886520, majf=0, minf=8
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued rwt: total=524625,523951,0, short=0,0,0, dropped=0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32
test: (groupid=0, jobs=1): err= 0: pid=12008: Sun Aug 12 11:52:11 2018
   read: IOPS=2498, BW=9992KiB/s (10.2MB/s)(2045MiB/209566msec)
   bw (  KiB/s): min= 9368, max=11616, per=24.98%, avg=9995.42, stdev=223.78, samples=419
   iops        : min= 2342, max= 2904, avg=2498.79, stdev=55.98, samples=419
  write: IOPS=2505, BW=9.79MiB/s (10.3MB/s)(2051MiB/209566msec)
   bw (  KiB/s): min= 9160, max=12048, per=25.05%, avg=10025.54, stdev=258.49, samples=419
   iops        : min= 2290, max= 3012, avg=2506.33, stdev=64.66, samples=419
  cpu          : usr=2.88%, sys=13.13%, ctx=888297, majf=0, minf=8
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued rwt: total=523509,525067,0, short=0,0,0, dropped=0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32
test: (groupid=0, jobs=1): err= 0: pid=12009: Sun Aug 12 11:52:11 2018
   read: IOPS=2503, BW=9.78MiB/s (10.3MB/s)(2050MiB/209596msec)
   bw (  KiB/s): min= 9256, max=11728, per=25.03%, avg=10015.77, stdev=227.79, samples=419
   iops        : min= 2314, max= 2932, avg=2503.89, stdev=56.99, samples=419
  write: IOPS=2499, BW=9998KiB/s (10.2MB/s)(2046MiB/209596msec)
   bw (  KiB/s): min= 8680, max=11912, per=24.99%, avg=10000.53, stdev=261.38, samples=419
   iops        : min= 2170, max= 2978, avg=2500.08, stdev=65.37, samples=419
  cpu          : usr=3.15%, sys=13.06%, ctx=886967, majf=0, minf=8
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued rwt: total=524702,523874,0, short=0,0,0, dropped=0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32
test: (groupid=0, jobs=1): err= 0: pid=12010: Sun Aug 12 11:52:11 2018
   read: IOPS=2501, BW=9.77MiB/s (10.2MB/s)(2048MiB/209609msec)
   bw (  KiB/s): min= 9226, max=11880, per=25.04%, avg=10019.71, stdev=224.75, samples=419
   iops        : min= 2306, max= 2970, avg=2504.67, stdev=56.40, samples=419
  write: IOPS=2501, BW=9.77MiB/s (10.2MB/s)(2048MiB/209609msec)
   bw (  KiB/s): min= 8761, max=12016, per=25.04%, avg=10019.51, stdev=268.57, samples=419
   iops        : min= 2190, max= 3004, avg=2504.64, stdev=67.33, samples=419
  cpu          : usr=3.00%, sys=13.06%, ctx=887794, majf=0, minf=9
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0%
     issued rwt: total=524302,524274,0, short=0,0,0, dropped=0,0,0
     latency   : target=0, window=0, percentile=100.00%, depth=32

Run status group 0 (all jobs):
   READ: bw=39.1MiB/s (40.0MB/s), 9992KiB/s-9.78MiB/s (10.2MB/s-10.3MB/s), io=8192MiB (8590MB), run=209566-209633msec
  WRITE: bw=39.1MiB/s (40.0MB/s), 9997KiB/s-9.79MiB/s (10.2MB/s-10.3MB/s), io=8192MiB (8590MB), run=209566-209633msec

Disk stats (read/write):
  sda: ios=2094657/2095106, merge=0/353, ticks=15059352/11495516, in_queue=26641424, util=100.00%