128m: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
...
128m: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
fio 2.0.7
Starting 5 processes
128m: Laying out IO file(s) (1 file(s) / 128MB)
128m: Laying out IO file(s) (1 file(s) / 128MB)
128m: Laying out IO file(s) (1 file(s) / 128MB)
128m: Laying out IO file(s) (1 file(s) / 128MB)
128m: Laying out IO file(s) (1 file(s) / 128MB)

128m: (groupid=0, jobs=5): err= 0: pid=1203
  write: io=906276KB, bw=45312KB/s, iops=11327 , runt= 20001msec
    clat (usec): min=27 , max=7594.5K, avg=437.42, stdev=40912.89
     lat (usec): min=28 , max=7594.5K, avg=438.23, stdev=40912.89
    clat percentiles (usec):
     |  1.00th=[   48],  5.00th=[   64], 10.00th=[   68], 20.00th=[   79],
     | 30.00th=[   82], 40.00th=[   84], 50.00th=[   88], 60.00th=[   97],
     | 70.00th=[  106], 80.00th=[  120], 90.00th=[  141], 95.00th=[  153],
     | 99.00th=[  193], 99.50th=[  221], 99.90th=[  628], 99.95th=[ 1496],
     | 99.99th=[129536]
    bw (KB/s)  : min=    0, max=40512, per=54.32%, avg=24613.50, stdev=18146.52
    lat (usec) : 50=1.90%, 100=61.70%, 250=36.08%, 500=0.20%, 750=0.04%
    lat (usec) : 1000=0.02%
    lat (msec) : 2=0.03%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
    lat (msec) : 100=0.01%, 250=0.01%, 2000=0.01%, >=2000=0.01%
  cpu          : usr=0.82%, sys=3.69%, ctx=273326, majf=0, minf=139
  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=0/w=226569/d=0, short=r=0/w=0/d=0

Run status group 0 (all jobs):
  WRITE: io=906276KB, aggrb=45311KB/s, minb=45311KB/s, maxb=45311KB/s, mint=20001msec, maxt=20001msec

Disk stats (read/write):
  xvda: ios=2/221210, merge=0/121, ticks=7/93202, in_queue=93104, util=97.64%
