fio

Flexible I/O tester. Tool that will spawn a number of threads or processes doing a particular type of I/O action. More information: https://fio.readthedocs.io/en/latest/fio_doc.html.

• Test random reads:
  sudo 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:
  sudo 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:
  sudo fio --filename={{path/to/file}} --size=500GB --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:
  sudo fio {{path/to/job_file}}
• Convert a specific job file to command-line options:
  fio --showcmd {{path/to/job_file}}