yum install fio
Create job file ‘random-read-test.fio’ with the following contents:
[random-read]
rw=randread
size=128m
directory=/tmp/fio-testing/data
Create job file ‘random-write-test.fio’ with the following contents:
[random_rw]
rw=randrw
size=128m
directory=/tmp/fio-testing/data
fio random-write-test.fio