.BI job_max_open_zones \fR=\fPint
Limit on the number of simultaneously opened zones per single thread/process.
.TP
+.BI ignore_zone_limits \fR=\fPbool
+If this isn't set, fio will query the max open zones limit from the zoned block
+device, and exit if the specified \fBmax_open_zones\fR value is larger than the
+limit reported by the device. Default: false.
+.TP
.BI zone_reset_threshold \fR=\fPfloat
A number between zero and one that indicates the ratio of logical blocks with
data to the total number of logical blocks in the test above which zones
this option will also enable \fBrefill_buffers\fR to prevent every buffer
being identical.
.TP
+.BI dedupe_mode \fR=\fPstr
+If \fBdedupe_percentage\fR is given, then this option controls how fio
+generates the dedupe buffers.
+.RS
+.RS
+.TP
+.B repeat
+.P
+.RS
+Generate dedupe buffers by repeating previous writes
+.RE
+.TP
+.B working_set
+.P
+.RS
+Generate dedupe buffers from working set
+.RE
+.RE
+.P
+\fBrepeat\fR is the default option for fio. Dedupe buffers are generated
+by repeating previous unique write.
+
+\fBworking_set\fR is a more realistic workload.
+With \fBworking_set\fR, \fBdedupe_working_set_percentage\fR should be provided.
+Given that, fio will use the initial unique write buffers as its working set.
+Upon deciding to dedupe, fio will randomly choose a buffer from the working set.
+Note that by using \fBworking_set\fR the dedupe percentage will converge
+to the desired over time while \fBrepeat\fR maintains the desired percentage
+throughout the job.
+.RE
+.RE
+.TP
+.BI dedupe_working_set_percentage \fR=\fPint
+If \fBdedupe_mode\fR is set to \fBworking_set\fR, then this controls
+the percentage of size of the file or device used as the buffers
+fio will choose to generate the dedupe buffers from
+.P
+.RS
+Note that \fBsize\fR needs to be explicitly provided and only 1 file
+per job is supported
+.RE
+.TP
.BI invalidate \fR=\fPbool
Invalidate the buffer/page cache parts of the files to be used prior to
starting I/O if the platform and file type support it. Defaults to true.
NFS filesystems from userspace via libnfs. This is useful for
achieving higher concurrency and thus throughput than is possible
via kernel NFS.
+.TP
+.B exec
+Execute 3rd party tools. Could be used to perform monitoring during jobs runtime.
.SS "I/O engine specific parameters"
In addition, there are some parameters which are only valid when a specific
\fBioengine\fR is in use. These are used identically to normal parameters,
.BI (nfs)nfs_url
URL in libnfs format, eg nfs://<server|ipv4|ipv6>/path[?arg=val[&arg=val]*]
Refer to the libnfs README for more details.
+.TP
+.BI (exec)program\fR=\fPstr
+Specify the program to execute.
+Note the program will receive a SIGTERM when the job is reaching the time limit.
+A SIGKILL is sent once the job is over. The delay between the two signals is defined by \fBgrace_time\fR option.
+.TP
+.BI (exec)arguments\fR=\fPstr
+Specify arguments to pass to program.
+Some special variables can be expanded to pass fio's job details to the program :
+.RS
+.RS
+.TP
+.B %r
+replaced by the duration of the job in seconds
+.TP
+.BI %n
+replaced by the name of the job
+.RE
+.RE
+.TP
+.BI (exec)grace_time\fR=\fPint
+Defines the time between the SIGTERM and SIGKILL signals. Default is 1 second.
+.TP
+.BI (exec)std_redirect\fR=\fbool
+If set, stdout and stderr streams are redirected to files named from the job name. Default is true.
.SS "I/O depth"
.TP
.BI iodepth \fR=\fPint
projects / fio.git / blobdiff