X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=6d80360574e0c89899756cbc6a1d9838293c9c81;hp=482d69651c0362c3afd5863512dc32f7d73f3733;hb=03d189b7d77f66ce4f4dba9885d34c7a55ff4e53;hpb=a3f001f5f679ae4efc5f34f682b16a2673ec2bac

diff --git a/HOWTO b/HOWTO
index 482d6965..6d803605 100644
--- 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.
 
+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.
@@ -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
-		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).
 
@@ -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.
-		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.