How to check parallel i/o speeds and performance on ubuntu

Install fio

• fio stands for flexible I/O tester

• used for benchmarking and stress/hardware verification

• can be installed directly using apt

• parallel I/O inbuilt

To install

sudo apt install fio

Performing random write test

sudo fio --name=randwrite --ioengine=libaio --iodepth=1 --rw=randwrite --bs=4k --direct=0 --size=512M --numjobs=2 --runtime=240 --group_reporting

Performing random read test

sudo fio --name=randread --ioengine=libaio --iodepth=16 --rw=randread --bs=4k --direct=0 --size=512M --numjobs=4 --runtime=240 --group_reporting