size=x Set file size to x bytes (x string can include k/m/g)
ioengine=x 'x' may be: aio/libaio/linuxaio for Linux aio,
posixaio for POSIX aio, sync for regular read/write io,
- mmap for mmap'ed io, splice for using splice/vmsplice,
- or sgio for direct SG_IO io. The latter only works on
- Linux on SCSI (or SCSI-like devices, such as
- usb-storage or sata/libata driven) devices. Fio also
- has a null io engine, which is mainly used for testing
- fio itself.
+ mmap for mmap'ed io, syslet-rw for syslet driven
+ read/write, splice for using splice/vmsplice,
+ sgio for direct SG_IO io, or net for network io. sgio
+ only works on Linux on SCSI (or SCSI-like devices,
+ such as usb-storage or sata/libata driven) devices.
+ Fio also has a null io engine, which is mainly used
+ for testing fio itself.
iodepth=x For async io, allow 'x' ios in flight
overwrite=x If 'x', layout a write file first.
nrfiles=x Spread io load over 'x' number of files per job,