fio Command Examples

Flexible I/O tester: do an I/O action spawning multiple threads or processes. More information: https://fio.readthedocs.io/en/latest/fio_doc.html.

• Test random reads:

fio --filename={{path/to/file}} --direct=1 --rw=randread --bs=4k --ioengine=libaio --iodepth=256 --runtime=120 --numjobs=4 --time_based --group_reporting --name={{job_name}} --eta-newline=1 --readonly

• Test sequential reads:

fio --filename={{path/to/file}} --direct=1 --rw=read --bs=4k --ioengine=libaio --iodepth=256 --runtime=120 --numjobs=4 --time_based --group_reporting --name={{job_name}} --eta-newline=1 --readonly

• Test random read/write:

fio --filename={{path/to/file}} --direct=1 --rw=randrw --bs=4k --ioengine=libaio --iodepth=256 --runtime=120 --numjobs=4 --time_based --group_reporting --name={{job_name}} --eta-newline=1

• Test with parameters from a job file:

fio {{path/to/job_file}}

• Convert a specific job file to command-line options:

fio --showcmd {{path/to/job_file}}