root@victim:~# cat write.ini
[writetest]
blocksize=4096
filename=/dev/sdk
rw=randwrite
direct=1
buffered=0
ioengine=libaio
iodepth=32
runtime=60
root@victim:~# fio write.ini
writetest: (g=0): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=32
fio-2.2.10
Starting 1 process
Jobs: 1 (f=1): [w(1)] [100.0% done] [0KB/1144KB/0KB /s] [0/286/0 iops] [eta 00m:00s]
writetest: (groupid=0, jobs=1): err= 0: pid=14469: Mon Feb 20 13:55:42 2017
  write: io=121340KB, bw=2019.9KB/s, iops=504, runt= 60073msec
    slat (usec): min=4, max=285, avg=24.74, stdev= 8.69
    clat (usec): min=532, max=366269, avg=63293.77, stdev=44200.23
     lat (usec): min=598, max=366299, avg=63319.19, stdev=44205.06
    clat percentiles (msec):
     |  1.00th=[    7],  5.00th=[    7], 10.00th=[    8], 20.00th=[    9],
     | 30.00th=[   58], 40.00th=[   68], 50.00th=[   71], 60.00th=[   75],
     | 70.00th=[   79], 80.00th=[   85], 90.00th=[  101], 95.00th=[  127],
     | 99.00th=[  227], 99.50th=[  269], 99.90th=[  355], 99.95th=[  359],
     | 99.99th=[  363]
    bw (KB  /s): min=  367, max=14480, per=100.00%, avg=2025.30, stdev=2493.85
    lat (usec) : 750=0.01%
    lat (msec) : 10=24.29%, 20=3.27%, 50=1.01%, 100=61.25%, 250=9.52%
    lat (msec) : 500=0.67%
  cpu          : usr=0.83%, sys=2.23%, ctx=25812, majf=0, minf=747
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=99.9%, >=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    : total=r=0/w=30335/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=32

Run status group 0 (all jobs):
  WRITE: io=121340KB, aggrb=2019KB/s, minb=2019KB/s, maxb=2019KB/s, mint=60073msec, maxt=60073msec

Disk stats (read/write):
  sdk: ios=44/30233, merge=0/0, ticks=12/1910692, in_queue=1911936, util=99.71%