X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=HOWTO;h=2e4cdbdf146e17394a8ebcd481097e43846131ba;hb=d09a64a01a6c807596e9286c93f6c6f30fd2ea26;hp=b67a201efd78635953b46ded0538de6110ec3e46;hpb=85549ba02ac57942632c3d1903efa4aa3c72af6a;p=fio.git

diff --git a/HOWTO b/HOWTO
index b67a201e..2e4cdbdf 100644
--- a/HOWTO
+++ b/HOWTO
@@ -267,7 +267,7 @@ filename=str	Fio normally makes up a filename based on the job name,
 		files between threads in a job or several jobs, specify
 		a filename for each of them to override the default. If
 		the ioengine used is 'net', the filename is the host, port,
-		and protocol to use in the format of =host/port/protocol.
+		and protocol to use in the format of =host,port,protocol.
 		See ioengine=net for more. If the ioengine is file based, you
 		can specify a number of files by separating the names with a
 		':' colon. So if you wanted a job to open /dev/sda and /dev/sdb
@@ -481,6 +481,13 @@ refill_buffers	If this option is given, fio will refill the IO buffers
 		isn't specified, naturally. If data verification is enabled,
 		refill_buffers is also automatically enabled.
 
+scramble_buffers=bool	If refill_buffers is too costly and the target is
+		using data deduplication, then setting this option will
+		slightly modify the IO buffer contents to defeat normal
+		de-dupe attempts. This is not enough to defeat more clever
+		block compression attempts, but it will stop naive dedupe of
+		blocks. Default: true.
+
 nrfiles=int	Number of files to use for this job. Defaults to 1.
 
 openfiles=int	Number of files to keep open at the same time. Defaults to
@@ -857,6 +864,9 @@ exitall		When one job finishes, terminate the rest. The default is
 bwavgtime=int	Average the calculated bandwidth over the given time. Value
 		is specified in milliseconds.
 
+iopsavgtime=int	Average the calculated IOPS over the given time. Value
+		is specified in milliseconds.
+
 create_serialize=bool	If true, serialize the file creating for the jobs.
 			This may be handy to avoid interleaving of data
 			files, which may greatly depend on the filesystem
@@ -1097,6 +1107,9 @@ write_lat_log=str Same as write_bw_log, except that this option stores io
 		and foo_lat.log. This helps fio_generate_plot fine the logs
 		automatically.
 
+write_bw_log=str If given, write an IOPS log of the jobs in this job
+		file. See write_bw_log.
+
 lockmem=int	Pin down the specified amount of memory with mlock(2). Can
 		potentially be used instead of removing memory or booting
 		with less memory to simulate a smaller amount of memory.