diskutil: don't print terse disk util twice for json,terse output format

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 482d69651c0362c3afd5863512dc32f7d73f3733..6d80360574e0c89899756cbc6a1d9838293c9c81 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -305,6 +305,16 @@ name=str   ASCII name of the job. This may be used to override the
                special purpose of also signaling the start of a new
                job.
 
                special purpose of also signaling the start of a new
                job.
 

+wait_for=str   Specifies the name of the already defined job to wait
+               for. Single waitee name only may be specified. If set, the job
+               won't be started until all workers of the waitee job are done.
+
+               Wait_for operates on the job name basis, so there are a few
+               limitations. First, the waitee must be defined prior to the
+               waiter job (meaning no forward references). Second, if a job
+               is being referenced as a waitee, it must have a unique name
+               (no duplicate waitees).
+

 description=str        Text description of the job. Doesn't do anything except
                dump this text description when this job is run. It's
                not parsed.
 description=str        Text description of the job. Doesn't do anything except
                dump this text description when this job is run. It's
                not parsed.


@@ -1003,7 +1013,9 @@ random_generator=str      Fio supports the following engines for generating
                typically good enough. LFSR only works with single
                block sizes, not with workloads that use multiple block
                sizes. If used with such a workload, fio may read or write
                typically good enough. LFSR only works with single
                block sizes, not with workloads that use multiple block
                sizes. If used with such a workload, fio may read or write

-               some blocks multiple times.
+               some blocks multiple times. The default value is tausworthe,
+               unless the required space exceeds 2^32 blocks. If it does,
+               then tausworthe64 is selected automatically.

 
 nice=int       Run the job with the given nice value. See man nice(2).
 
 
 nice=int       Run the job with the given nice value. See man nice(2).
 


@@ -1558,8 +1570,12 @@ log_avg_msec=int By default, fio will log an entry in the iops, latency,
                disk log, that can quickly grow to a very large size. Setting
                this option makes fio average the each log entry over the
                specified period of time, reducing the resolution of the log.
                disk log, that can quickly grow to a very large size. Setting
                this option makes fio average the each log entry over the
                specified period of time, reducing the resolution of the log.

-               Defaults to 0.
+               See log_max as well. Defaults to 0, logging all entries.

 
 

+log_max=bool   If log_avg_msec is set, fio logs the average over that window.
+               If you instead want to log the maximum value, set this option
+               to 1. Defaults to 0, meaning that averaged values are logged.
+.

 log_offset=int If this is set, the iolog options will include the byte
                offset for the IO entry as well as the other data values.
 
 log_offset=int If this is set, the iolog options will include the byte
                offset for the IO entry as well as the other data values.