genfio: Splitting gen_template in 2 parts

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index eddc265258ee7f569e9c9a9a6e854298f87e73d8..91fd5311afe6f1166a2be31109470661465ef576 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -54,6 +54,12 @@ Convert \fIjobfile\fR to a set of command-line options.
 Specifies when real-time ETA estimate should be printed.  \fIwhen\fR may
 be one of `always', `never' or `auto'.
 .TP
+.BI \-\-eta\-newline \fR=\fPtime
+Force an ETA newline for every `time` period passed.
+.TP
+.BI \-\-status\-interval \fR=\fPtime
+Report full output status every `time` period passed.
+.TP
 .BI \-\-readonly
 Turn on safety read-only checks, preventing any attempted write.
 .TP
@@ -442,6 +448,9 @@ Basic \fIpread\fR\|(2) or \fIpwrite\fR\|(2) I/O.
 Basic \fIreadv\fR\|(2) or \fIwritev\fR\|(2) I/O. Will emulate queuing by
 coalescing adjacents IOs into a single submission.
 .TP
+.B pvsync
+Basic \fIpreadv\fR\|(2) or \fIpwritev\fR\|(2) I/O.
+.TP
 .B libaio
 Linux native asynchronous I/O. This ioengine defines engine specific options.
 .TP
@@ -635,6 +644,15 @@ If you wanted to use zipf with a theta of 1.2, you would use
 random_distribution=zipf:1.2 as the option. If a non-uniform model is used,
 fio will disable use of the random map.
 .TP
+.BI percentage_random \fR=\fPint
+For a random workload, set how big a percentage should be random. This defaults
+to 100%, in which case the workload is fully random. It can be set from
+anywhere from 0 to 100.  Setting it to 0 would make the workload fully
+sequential.
+.TP
+.BI percentage_sequential \fR=\fPint
+See \fBpercentage_random\fR.
+.TP
 .B norandommap
 Normally \fBfio\fR will cover every block of the file when doing random I/O. If
 this parameter is given, a new offset will be chosen without looking at past
@@ -684,7 +702,12 @@ Pretend to spend CPU time for given number of microseconds, sleeping the rest
 of the time specified by \fBthinktime\fR.  Only valid if \fBthinktime\fR is set.
 .TP
 .BI thinktime_blocks \fR=\fPint
-Number of blocks to issue before waiting \fBthinktime\fR microseconds.
+Only valid if thinktime is set - control how many blocks to issue, before
+waiting \fBthinktime\fR microseconds. If not set, defaults to 1 which will
+make fio wait \fBthinktime\fR microseconds after every block. This
+effectively makes any queue depth setting redundant, since no more than 1 IO
+will be queued before we have to complete it and do our thinktime. In other
+words, this setting effectively caps the queue depth if the latter is larger.
 Default: 1.
 .TP
 .BI rate \fR=\fPint
@@ -1038,9 +1061,15 @@ simulate a smaller amount of memory. The amount specified is per worker.
 .TP
 .BI exec_prerun \fR=\fPstr
 Before running the job, execute the specified command with \fBsystem\fR\|(3).
+.RS
+Output is redirected in a file called \fBjobname.prerun.txt\fR
+.RE
 .TP
 .BI exec_postrun \fR=\fPstr
 Same as \fBexec_prerun\fR, but the command is executed after the job completes.
+.RS
+Output is redirected in a file called \fBjobname.postrun.txt\fR
+.RE
 .TP
 .BI ioscheduler \fR=\fPstr
 Attempt to switch the device hosting the file to the specified I/O scheduler.