[root@ovirtnodea ~]# sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=256 --size=4G --readwrite=randwrite --ramp_time=4
test: (g=0): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=256
fio-2.2.8
Starting 1 process
test: Laying out IO file(s) (1 file(s) / 4096MB)
^Cbs: 1 (f=1): [w(1)] [66.6% done] [0KB/4504KB/0KB /s] [0/1126/0 iops] [eta 04m:46s]
fio: terminating on signal 2

test: (groupid=0, jobs=1): err= 0: pid=26330: Tue Jan 30 22:26:03 2018
  write: io=2723.3MB, bw=4921.4KB/s, iops=1229, runt=566623msec
  cpu          : usr=0.19%, sys=0.81%, ctx=28770, majf=0, minf=724
  IO depths    : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=0.1%, >=64=100.8%
     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=0.1%
     issued    : total=r=0/w=696888/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=256

Run status group 0 (all jobs):
  WRITE: io=2723.3MB, aggrb=4921KB/s, minb=4921KB/s, maxb=4921KB/s, mint=566623msec, maxt=566623msec

Disk stats (read/write):
    dm-0: ios=0/723040, merge=0/0, ticks=0/84739152, in_queue=84748776, util=100.00%, aggrios=1/714823, aggrmerge=7/8223, aggrticks=1461/81157431, aggrin_queue=81159051, aggrutil=100.00%
  sda: ios=1/714823, merge=7/8223, ticks=1461/81157431, in_queue=81159051, util=100.00%