or receive, if the latter only the port
argument is used.
+ netsplice Like net, but uses splice/vmsplice to
+ map data and send/receive.
+
cpu Doesn't transfer any data, but burns CPU
cycles according to the cpuload= and
cpucycle= options. Setting cpuload=85
of milliseconds.
cpumask=int Set the CPU affinity of this job. The parameter given is a
- bitmask of allowed CPU's the job may run on. See man
+ bitmask of allowed CPU's the job may run on. So if you want
+ the allowed CPUs to be 1 and 5, you would pass the decimal
+ value of (1 << 1 | 1 << 5), or 34. See man
sched_setaffinity(2). This may not work on all supported
operating systems or kernel versions.
+cpus_allowed=str Controls the same options as cpumask, but it allows a text
+ setting of the permitted CPUs instead. So to use CPUs 1 and
+ 5, you would specify cpus_allowed=1,5.
+
startdelay=int Start this job the specified number of seconds after fio
has started. Only useful if the job file contains several
jobs, and you want to delay starting some jobs to a certain
slat= Submission latency (avg being the average, stdev being the
standard deviation). This is the time it took to submit
the io. For sync io, the slat is really the completion
- latency, since queue/complete is one operation there.
+ latency, since queue/complete is one operation there. This
+ value can be in miliseconds or microseconds, fio will choose
+ the most appropriate base and print that. In the example
+ above, miliseconds is the best scale.
clat= Completion latency. Same names as slat, this denotes the
time from submission to completion of the io pieces. For
sync io, clat will usually be equal (or very close) to 0,