--bandwidth-log Generate aggregate bandwidth logs
--minimal Minimal (terse) output
--output-format=type Output format (terse,json,json+,normal)
- --terse-version=type Terse version output format (default 3, or 2 or 4).
+ --terse-version=type Set terse version output format (default 3, or 2 or 4)
--version Print version info and exit
--help Print this page
--cpuclock-test Perform test/validation of CPU clock
- --crctest[=test] Test speed of checksum functions
+ --crctest=type Test speed of checksum functions
--cmdhelp=cmd Print command help, "all" for all of them
--enghelp=engine Print ioengine help, or list available ioengines
--enghelp=engine,cmd Print help for an ioengine cmd
--showcmd Turn a job file into command line options
- --readonly Turn on safety read-only checks, preventing
- writes
--eta=when When ETA estimate should be printed
May be "always", "never" or "auto"
--eta-newline=time Force a new line for every 'time' period passed
--status-interval=t Force full status dump every 't' period passed
+ --readonly Turn on safety read-only checks, preventing writes
--section=name Only run specified section in job file.
Multiple sections can be specified.
--alloc-size=kb Set smalloc pool to this size in kb (def 16384)
--warnings-fatal Fio parser warnings are fatal
- --max-jobs Maximum number of threads/processes to support
- --server=args Start backend server. See Client/Server section.
- --client=host Connect to specified backend(s).
- --remote-config=file Tell fio server to load this local file
+ --max-jobs=nr Maximum number of threads/processes to support
+ --server=args Start a backend fio server. See Client/Server section.
+ --client=hostname Talk to remote backend(s) fio server at hostname
+ --daemonize=pidfile Background fio server, write pid to file
+ --remote-config=file Tell fio server to load this local job file
--idle-prof=option Report cpu idleness on a system or percpu basis
(option=system,percpu) or run unit work
- calibration only (option=calibrate).
+ calibration only (option=calibrate)
--inflate-log=log Inflate and output compressed log
--trigger-file=file Execute trigger cmd when file exists
--trigger-timeout=t Execute trigger af this time
net Dump info related to networking connections
rate Dump info related to IO rate switching
compress Dump info related to log compress/decompress
+ steadystate Dump info related to steady state detection
+ helperthread Dump info related to helper thread
? or help Show available debug options.
One can specify multiple debug options: e.g. --debug=file,mem will enable