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=19521: Wed Aug 31 17:50:39 2016
  read : io=1024.7MB, bw=3034.5KB/s, iops=758, runt=345780msec
    clat (usec): min=492, max=1359, avg=517.20, stdev=55.87
     lat (usec): min=492, max=1359, avg=517.23, stdev=55.87
    clat percentiles (usec):
     |  1.00th=[  498],  5.00th=[  498], 10.00th=[  498], 20.00th=[  498],
     | 30.00th=[  502], 40.00th=[  502], 50.00th=[  502], 60.00th=[  502],
     | 70.00th=[  502], 80.00th=[  506], 90.00th=[  524], 95.00th=[  708],
     | 99.00th=[  740], 99.50th=[  756], 99.90th=[  900], 99.95th=[  908],
     | 99.99th=[ 1048]
    bw (KB  /s): min= 2600, max= 3448, per=100.00%, avg=3036.52, stdev=141.59
  write: io=1023.4MB, bw=3030.6KB/s, iops=757, runt=345780msec
    clat (usec): min=765, max=1788, avg=799.46, stdev=67.19
     lat (usec): min=766, max=1788, avg=799.50, stdev=67.20
    clat percentiles (usec):
     |  1.00th=[  772],  5.00th=[  772], 10.00th=[  772], 20.00th=[  772],
     | 30.00th=[  772], 40.00th=[  780], 50.00th=[  780], 60.00th=[  780],
     | 70.00th=[  780], 80.00th=[  788], 90.00th=[  820], 95.00th=[  996],
     | 99.00th=[ 1020], 99.50th=[ 1144], 99.90th=[ 1176], 99.95th=[ 1208],
     | 99.99th=[ 1320]
    bw (KB  /s): min= 2704, max= 3328, per=100.00%, avg=3032.56, stdev=93.00
    lat (usec) : 500=10.66%, 750=39.06%, 1000=48.19%
    lat (msec) : 2=2.08%
  cpu          : usr=99.96%, sys=0.00%, ctx=32513, majf=0, minf=3012
  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=3034KB/s, minb=3034KB/s, maxb=3034KB/s, mint=345780msec, maxt=345780msec
  WRITE: io=1023.4MB, aggrb=3030KB/s, minb=3030KB/s, maxb=3030KB/s, mint=345780msec, maxt=345780msec

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