X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.1;h=353f8fff77bfafc2a04635fda400fc3075e7c84a;hb=11822c0bcc03ebcb893bfcb6490c8a1422fcd28e;hp=ebb489905707d9b2b48511295477bed80d1b7fec;hpb=b5b603f474a069eb63839af05db1571a9c122b56;p=fio.git

diff --git a/fio.1 b/fio.1
index ebb48990..353f8fff 100644
--- a/fio.1
+++ b/fio.1
@@ -247,6 +247,11 @@ will be used if no other format specifier is given.
 .RE
 .P
 .TP
+.BI unique_filename \fR=\fPbool
+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.
+.TP
 .BI lockfile \fR=\fPstr
 Fio defaults to not locking any files before it does IO to them. If a file or
 file descriptor is shared, fio can serialize IO to that file to make the end
@@ -566,10 +571,24 @@ Round robin over opened files (default).
 .TP
 .B sequential
 Do each file in the set sequentially.
+.TP
+.B zipf
+Use a zipfian distribution to decide what file to access.
+.TP
+.B pareto
+Use a pareto distribution to decide what file to access.
+.TP
+.B gauss
+Use a gaussian (normal) distribution to decide what file to access.
 .RE
 .P
-The number of I/Os to issue before switching to a new file can be specified by
-appending `:\fIint\fR' to the service type.
+For \fBrandom\fR, \fBroundrobin\fR, and \fBsequential\fR, a postfix can be
+appended to tell fio how many I/Os to issue before switching to a new file.
+For example, specifying \fBfile_service_type=random:8\fR would cause fio to
+issue \fI8\fR I/Os before selecting a new file at random. For the non-uniform
+distributions, a floating point postfix can be given to influence how the
+distribution is skewed. See \fBrandom_distribution\fR for a description of how
+that would work.
 .RE
 .TP
 .BI ioengine \fR=\fPstr
@@ -614,9 +633,6 @@ File is memory mapped with \fBmmap\fR\|(2) and data copied using
 \fBsplice\fR\|(2) is used to transfer the data and \fBvmsplice\fR\|(2) to
 transfer data from user-space to the kernel.
 .TP
-.B syslet-rw
-Use the syslet system calls to make regular read/write asynchronous.
-.TP
 .B sg
 SCSI generic sg v3 I/O. May be either synchronous using the SG_IO ioctl, or if
 the target is an sg character device, we use \fBread\fR\|(2) and
@@ -1693,7 +1709,7 @@ from user-space to reap events. The reaping mode is only
 enabled when polling for a minimum of 0 events (eg when
 iodepth_batch_complete=0).
 .TP
-.BI (psyncv2)hipri
+.BI (pvsync2)hipri
 Set RWF_HIPRI on IO, indicating to the kernel that it's of
 higher priority than normal.
 .TP
@@ -2068,7 +2084,7 @@ This format is not supported in Fio versions => 1.20-rc3.
 .B Trace file format v2
 .RS
 The second version of the trace file format was added in Fio version 1.17.
-It allows to access more then one file per trace and has a bigger set of
+It allows one to access more then one file per trace and has a bigger set of
 possible file actions.
 
 The first line of the trace file has to be: