randrepeat=bool For random IO workloads, seed the generator in a predictable
way so that results are repeatable across repetitions.
+randseed=int Seed the random number generators based on this seed value, to
+ be able to control what sequence of output is being generated.
+ If not set, the random sequence depends on the randrepeat
+ setting.
+
use_os_rand=bool Fio can either use the random generator supplied by the OS
to generator random offsets, or it can use it's own internal
generator (based on Tausworthe). Default is to use the
alternate random and zeroed data throughout the IO
buffer.
+buffer_pattern=str If set, fio will fill the io buffers with this pattern.
+ If not set, the contents of io buffers is defined by the other
+ options related to buffer contents. The setting can be any
+ pattern of bytes, and can be prefixed with 0x for hex values.
+
nrfiles=int Number of files to use for this job. Defaults to 1.
openfiles=int Number of files to keep open at the same time. Defaults to
to repeat the same workload a given number of times. Defaults
to 1.
+verify_only Do not perform specified workload---only verify data still
+ matches previous invocation of this workload. This option
+ allows one to check data multiple times at a later date
+ without overwriting it. This option makes sense only for
+ workloads that write data, and does not support workloads
+ with the time_based option set.
+
do_verify=bool Run the verify phase after a write phase. Only makes sense if
verify is set. Defaults to 1.
meta Write extra information about each io
(timestamp, block number etc.). The block
- number is verified. See also verify_pattern.
+ number is verified. The io sequence number is
+ verified for workloads that write data.
+ See also verify_pattern.
null Only pretend to verify. Useful for testing
internals with ioengine=null, not for much
[net] proto=str The network protocol to use. Accepted values are:
tcp Transmission control protocol
+ tcpv6 Transmission control protocol V6
udp User datagram protocol
+ udpv6 User datagram protocol V6
unix UNIX domain socket
When the protocol is TCP or UDP, the port must also be given,