fio --name=read_iops --size=2G --bs=4k --rw=randread --verify=0 --direct=1 --ioengine=libaio --iodepth=64
read_iops: (g=0): rw=randread, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=64
fio-3.33
Starting 1 process
read_iops: Laying out IO file (1 file / 2048MiB)...