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=12656: Wed Aug 31 18:14:06 2016
  read : io=1024.7MB, bw=3076.4KB/s, iops=769, runt=341062msec
    clat (usec): min=415, max=1703, avg=509.78, stdev=37.40
     lat (usec): min=415, max=1703, avg=509.81, stdev=37.40
    clat percentiles (usec):
     |  1.00th=[  482],  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=[  540],
     | 99.00th=[  724], 99.50th=[  732], 99.90th=[  748], 99.95th=[  860],
     | 99.99th=[  900]
    bw (KB  /s): min= 2688, max= 3552, per=100.00%, avg=3078.69, stdev=143.84
  write: io=1023.4MB, bw=3072.6KB/s, iops=768, runt=341062msec
    clat (usec): min=683, max=1955, avg=788.99, stdev=45.83
     lat (usec): min=683, max=1955, avg=789.04, stdev=45.84
    clat percentiles (usec):
     |  1.00th=[  756],  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=[  812], 95.00th=[  828],
     | 99.00th=[ 1004], 99.50th=[ 1012], 99.90th=[ 1128], 99.95th=[ 1144],
     | 99.99th=[ 1208]
    bw (KB  /s): min= 2752, max= 3552, per=100.00%, avg=3074.60, stdev=96.62
    lat (usec) : 500=12.55%, 750=37.73%, 1000=48.96%
    lat (msec) : 2=0.76%
  cpu          : usr=99.96%, sys=0.01%, ctx=32870, majf=0, minf=3014
  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=3076KB/s, minb=3076KB/s, maxb=3076KB/s, mint=341062msec, maxt=341062msec
  WRITE: io=1023.4MB, aggrb=3072KB/s, minb=3072KB/s, maxb=3072KB/s, mint=341062msec, maxt=341062msec

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