randrw: (g=0): rw=randrw, bs=4K-4K/4K-4K/4K-4K, ioengine=mmap, iodepth=1
fio-2.6
Starting 1 process
randrw: Laying out IO file(s) (1 file(s) / 2048MB)

randrw: (groupid=0, jobs=1): err= 0: pid=12678: Wed Aug 31 19:59:45 2016
  read : io=1024.7MB, bw=775489KB/s, iops=193872, runt=  1353msec
    clat (usec): min=1, max=297, avg= 1.67, stdev= 2.92
     lat (usec): min=1, max=297, avg= 1.70, stdev= 2.96
    clat percentiles (usec):
     |  1.00th=[    1],  5.00th=[    1], 10.00th=[    1], 20.00th=[    1],
     | 30.00th=[    1], 40.00th=[    1], 50.00th=[    2], 60.00th=[    2],
     | 70.00th=[    2], 80.00th=[    2], 90.00th=[    2], 95.00th=[    2],
     | 99.00th=[    3], 99.50th=[    4], 99.90th=[   12], 99.95th=[   12],
     | 99.99th=[  189]
    bw (KB  /s): min=736608, max=792296, per=98.58%, avg=764452.00, stdev=39377.36
  write: io=1023.4MB, bw=774513KB/s, iops=193628, runt=  1353msec
    clat (usec): min=2, max=235, avg= 2.66, stdev= 3.59
     lat (usec): min=2, max=235, avg= 2.70, stdev= 3.61
    clat percentiles (usec):
     |  1.00th=[    2],  5.00th=[    2], 10.00th=[    2], 20.00th=[    2],
     | 30.00th=[    2], 40.00th=[    2], 50.00th=[    3], 60.00th=[    3],
     | 70.00th=[    3], 80.00th=[    3], 90.00th=[    3], 95.00th=[    3],
     | 99.00th=[    4], 99.50th=[    6], 99.90th=[   13], 99.95th=[   14],
     | 99.99th=[  193]
    bw (KB  /s): min=736288, max=789440, per=98.50%, avg=762864.00, stdev=37584.14
    lat (usec) : 2=20.18%, 4=78.23%, 10=1.40%, 20=0.16%, 50=0.01%
    lat (usec) : 250=0.03%, 500=0.01%
  cpu          : usr=46.82%, sys=53.03%, ctx=135, majf=0, minf=786279
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=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=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=262309/w=261979/d=0, short=r=0/w=0/d=0, drop=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=1

Run status group 0 (all jobs):
   READ: io=1024.7MB, aggrb=775488KB/s, minb=775488KB/s, maxb=775488KB/s, mint=1353msec, maxt=1353msec
  WRITE: io=1023.4MB, aggrb=774512KB/s, minb=774512KB/s, maxb=774512KB/s, mint=1353msec, maxt=1353msec

Disk stats (read/write):
  pmem0: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%