$ sudo fio --bs=4k --ioengine=libaio --iodepth=32 --size=500m --direct=1 --runtime=60 --filename=/dev/sdf --rw=randread --numjobs=1 --name=test
test: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32
fio-3.16
Starting 1 process
Jobs: 1 (f=1): [r(1)][100.0%][r=2320KiB/s][r=580 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=12975: Sat Jun 19 14:51:27 2021
  read: IOPS=622, BW=2488KiB/s (2548kB/s)(146MiB/60127msec)
    [ ... ]
Run status group 0 (all jobs):
   READ: bw=2488KiB/s (2548kB/s), 2488KiB/s-2488KiB/s (2548kB/s-2548kB/s), io=146MiB (153MB), run=60127-60127msec
Disk stats (read/write):
  sdf: ios=37305/0, merge=0/0, ticks=1913563/0, in_queue=1838228, util=99.89%