What is fio FOR LINUX?

fio FOR LINUX

fio is an I/O tool meant to be used both for benchmark and stress/hardware verification. It's a handy tool that you can use to check how well your system performs!

Features of fio

What's cool about fio is that it supports four different types of I/O engines: sync, mmap, libaio, and posixaio. Plus, you can set up rate I/O, manage I/O priorities, and create either forked or threaded jobs. There's so much you can do with it!

Basic Commands in fio

• -s: This sets the I/O as sequential.


• -b: This option allows you to specify the block size in KiB for each I/O operation.


• -t : This sets the runtime in seconds.


• -r: For random I/O, this makes sure the sequence is repeatable.


• -R : If one thread doesn't meet the rate, this will quit all threads.


• -o : Use direct I/O if set to 1; buffered if it's 0.


• -l: Generate logs for latency per job.


• -w: Generate logs for bandwidth per job.


• -f : Read from a specified file for job descriptions.

Sample Job File Example

        [read_file]

        rw=0

        bs=4096



        [write_file]

        rw=1

        bs=16384

    

You would then run fio as follows:

fio -o1 -s -f file_with_above

If you're setting up multiple jobs, your second example could look something like this:

        [rf1]

        rw=0

        prio=6



        [rf2]

        rw=0

        prio=3



        [rf3]

        rw=0

        prio=0

        direct=1

    

You'd invoke it like so:

fio -o0 -s -b4096 -f file_with_above

If you want to learn more or download fio, check out Softpas! They have tons of software options available!

How Download Works

Go to the Softpas website, press the 'Downloads' button, and pick the app you want to download and install—easy and fast!