X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=ab25cb2796ddafeec8b375fe832c61825238fe81;hp=9ed2c5f5580365c69664eecb651f7e1b4065df7b;hb=d454a205f81e;hpb=ecfd2bb08cc87bc9a1b3d612258f1fdfb4d09698

diff --git a/HOWTO b/HOWTO
index 9ed2c5f5..ab25cb27 100644
--- a/HOWTO
+++ b/HOWTO
@@ -53,8 +53,8 @@ bottom, it contains the following basic parameters:
 
 	IO engine	How do we issue io? We could be memory mapping the
 			file, we could be using regular read/write, we
-			could be using splice, async io, syslet, or even
-			SG (SCSI generic sg).
+			could be using splice, async io, or even SG
+			(SCSI generic sg).
 
 	IO depth	If the io engine is async, how large a queuing
 			depth do we want to maintain?
@@ -329,18 +329,15 @@ directory=str	Prefix filenames with this directory. Used to place files
 filename=str	Fio normally makes up a filename based on the job name,
 		thread number, and file number. If you want to share
 		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.
-		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
-		as the two working files, you would use
-		filename=/dev/sda:/dev/sdb. On Windows, disk devices are
-		accessed as \\.\PhysicalDrive0 for the first device,
-		\\.\PhysicalDrive1 for the second etc. Note: Windows and
-		FreeBSD prevent write access to areas of the disk containing
-		in-use data (e.g. filesystems).
+		a filename for each of them to override the default.
+		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 as the two working
+		files, you would use filename=/dev/sda:/dev/sdb. On Windows,
+		disk devices are accessed as \\.\PhysicalDrive0 for the first
+		device, \\.\PhysicalDrive1 for the second etc. Note: Windows
+		and FreeBSD prevent write access to areas of the disk
+		containing in-use data (e.g. filesystems).
 		If the wanted filename does need to include a colon, then
 		escape that with a '\' character. For instance, if the filename
 		is "/dev/dsk/foo@3,0:c", then you would use
@@ -374,6 +371,11 @@ filename_format=str
 		default of $jobname.$jobnum.$filenum will be used if
 		no other format specifier is given.
 
+unique_filename=bool	To avoid collisions between networked clients, fio
+		defaults to prefixing any generated filenames (with a directory
+		specified) with the source of the client connecting. To disable
+		this behavior, set this option to 0.
+
 opendir=str	Tell fio to recursively add any file it can find in this
 		directory and down the file system tree.
 
@@ -701,7 +703,9 @@ ioengine=str	Defines how the job issues io to the file. The following
 
 			vsync	Basic readv(2) or writev(2) IO.
 
-			psyncv	Basic preadv(2) or pwritev(2) IO.
+			pvsync	Basic preadv(2) or pwritev(2) IO.
+
+			pvsync2	Basic preadv2(2) or pwritev2(2) IO.
 
 			libaio	Linux native asynchronous io. Note that Linux
 				may only support queued behaviour with
@@ -721,9 +725,6 @@ ioengine=str	Defines how the job issues io to the file. The following
 				vmsplice(2) to transfer data from user
 				space to the kernel.
 
-			syslet-rw Use the syslet system calls to make
-				regular read/write async.
-
 			sg	SCSI generic sg v3 io. May either be
 				synchronous using the SG_IO ioctl, or if
 				the target is an sg character device
@@ -748,7 +749,7 @@ ioengine=str	Defines how the job issues io to the file. The following
 
 			cpuio	Doesn't transfer any data, but burns CPU
 				cycles according to the cpuload= and
-				cpucycle= options. Setting cpuload=85
+				cpuchunks= options. Setting cpuload=85
 				will cause that job to do nothing but burn
 				85% of the CPU. In case of SMP machines,
 				use numjobs=<no_of_cpu> to get desired CPU
@@ -1063,7 +1064,8 @@ nice=int	Run the job with the given nice value. See man nice(2).
 
 prio=int	Set the io priority value of this job. Linux limits us to
 		a positive value between 0 and 7, with 0 being the highest.
-		See man ionice(1).
+		See man ionice(1). Refer to an appropriate manpage for
+		other operating systems since meaning of priority may differ.
 
 prioclass=int	Set the io priority class. See man ionice(1).