behaves in a similar fashion, except it sends the same offset 8 number of
times before generating a new offset.
-.. option:: unified_rw_reporting=bool
+.. option:: unified_rw_reporting=str
Fio normally reports statistics on a per data direction basis, meaning that
- reads, writes, and trims are accounted and reported separately. If this
- option is set fio sums the results and report them as "mixed" instead.
+ reads, writes, and trims are accounted and reported separately. This option
+ determines whether fio reports the results normally, summed together, or as
+ both options.
+ Accepted values are:
+
+ **none**
+ Normal statistics reporting.
+
+ **mixed**
+ Statistics are summed per data direction and reported together.
+
+ **both**
+ Statistics are reported normally, followed by the mixed statistics.
+
+ **0**
+ Backward-compatible alias for **none**.
+
+ **1**
+ Backward-compatible alias for **mixed**.
+
+ **2**
+ Alias for **both**.
.. option:: randrepeat=bool
.. option:: filesize=irange(int)
- Individual file sizes. May be a range, in which case fio will select sizes
- for files at random within the given range and limited to :option:`size` in
- total (if that is given). If not given, each created file is the same size.
- This option overrides :option:`size` in terms of file size, which means
- this value is used as a fixed size or possible range of each file.
+ Individual file sizes. May be a range, in which case fio will select sizes for
+ files at random within the given range. If not given, each created file is the
+ same size. This option overrides :option:`size` in terms of file size, i.e. if
+ :option:`filesize` is specified then :option:`size` becomes merely the default
+ for :option:`io_size` and has no effect at all if :option:`io_size` is set
+ explicitly.
.. option:: file_append=bool
and 'nrfiles', so that files will be created.
This engine is to measure file lookup and meta data access.
+ **filedelete**
+ Simply delete the files by unlink() and do no I/O to them. You need to set 'filesize'
+ and 'nrfiles', so that the files will be created.
+ This engine is to measure file delete.
+
**libpmem**
Read and write using mmap I/O to a file on a filesystem
mounted with DAX on a persistent memory device through the PMDK
this will be the starting port number since fio will use a range of
ports.
- [rdma]
+ [rdma], [librpma_*]
The port to use for RDMA-CM communication. This should be the same value
on the client and the server side.
is a TCP listener or UDP reader, the hostname is not used and must be omitted
unless it is a valid UDP multicast address.
+.. option:: serverip=str : [librpma_*]
+
+ The IP address to be used for RDMA-CM based I/O.
+
+.. option:: direct_write_to_pmem=bool : [librpma_*]
+
+ Set to 1 only when Direct Write to PMem from the remote host is possible.
+ Otherwise, set to 0.
+
.. option:: interface=str : [netsplice] [net]
The IP address of the network interface used to send or receive UDP
Poll store instead of waiting for completion. Usually this provides better
throughput at cost of higher(up to 100%) CPU utilization.
+.. option:: touch_objects=bool : [rados]
+
+ During initialization, touch (create if do not exist) all objects (files).
+ Touching all objects affects ceph caches and likely impacts test results.
+ Enabled by default.
+
.. option:: skip_bad=bool : [mtd]
Skip operations against known bad blocks.