init: fix missing dlhandle reference put

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index a4b0ea6af750d20361f790dec155dc4986887d0f..70eeeb0f6c8ca35634e98ed648b833df8299bb98 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -77,7 +77,14 @@ the I/O engine core to prevent writes due to unknown user space bug(s).
 .TP
 .BI \-\-eta \fR=\fPwhen
 Specifies when real\-time ETA estimate should be printed. \fIwhen\fR may
-be `always', `never' or `auto'.
+be `always', `never' or `auto'. `auto' is the default, it prints ETA when
+requested if the output is a TTY. `always' disregards the output type, and
+prints ETA when requested. `never' never prints ETA.
+.TP
+.BI \-\-eta\-interval \fR=\fPtime
+By default, fio requests client ETA status roughly every second. With this
+option, the interval is configurable. Fio imposes a minimum allowed time to
+avoid flooding the console, less than 250 msec is not supported.
 .TP
 .BI \-\-eta\-newline \fR=\fPtime
 Force a new line for every \fItime\fR period passed. When the unit is omitted,
@@ -1033,6 +1040,8 @@ Normal (Gaussian) distribution
 .TP
 .B zoned
 Zoned random distribution
+.B zoned_abs
+Zoned absolute random distribution
 .RE
 .P
 When using a \fBzipf\fR or \fBpareto\fR distribution, an input value is also
@@ -1068,7 +1077,30 @@ example, the user would do:
 random_distribution=zoned:60/10:30/20:8/30:2/40
 .RE
 .P
-similarly to how \fBbssplit\fR works for setting ranges and percentages
+A \fBzoned_abs\fR distribution works exactly like the\fBzoned\fR, except that
+it takes absolute sizes. For example, let's say you wanted to define access
+according to the following criteria:
+.RS
+.P
+.PD 0
+60% of accesses should be to the first 20G
+.P
+30% of accesses should be to the next 100G
+.P
+10% of accesses should be to the next 500G
+.PD
+.RE
+.P
+we can define an absolute zoning distribution with:
+.RS
+.P
+random_distribution=zoned:60/10:30/20:8/30:2/40
+.RE
+.P
+For both \fBzoned\fR and \fBzoned_abs\fR, fio supports defining up to 256
+separate zones.
+.P
+Similarly to how \fBbssplit\fR works for setting ranges and percentages
 of block sizes. Like \fBbssplit\fR, it's possible to specify separate
 zones for reads, writes, and trims. If just one set is given, it'll apply to
 all of them.
@@ -1197,6 +1229,8 @@ If you want a workload that has 50% 2k reads and 50% 4k reads, while having
 .P
 bssplit=2k/50:4k/50,4k/90,8k/10
 .RE
+.P
+Fio supports defining up to 64 different weights for each data direction.
 .RE
 .TP
 .BI blocksize_unaligned "\fR,\fB bs_unaligned"
@@ -1928,6 +1962,12 @@ I/Os that gets adjusted based on I/O completion rates. If this is set to
 flow, known as the Poisson process
 (\fIhttps://en.wikipedia.org/wiki/Poisson_point_process\fR). The lambda will be
 10^6 / IOPS for the given workload.
+.TP
+.BI rate_ignore_thinktime \fR=\fPbool
+By default, fio will attempt to catch up to the specified rate setting, if any
+kind of thinktime setting was used. If this option is set, then fio will
+ignore the thinktime and continue doing IO at the specified rate, instead of
+entering a catch-up mode after thinktime is done.
 .SS "I/O latency"
 .TP
 .BI latency_target \fR=\fPtime
@@ -2617,9 +2657,9 @@ completion latency below which 99.5% and 99.9% of the observed latencies
 fell, respectively.
 .TP
 .BI significant_figures \fR=\fPint
-If using \fB\-\-output\-format\fR of `normal', set the significant figures 
-to this value. Higher values will yield more precise IOPS and throughput 
-units, while lower values will round. Requires a minimum value of 1 and a 
+If using \fB\-\-output\-format\fR of `normal', set the significant figures
+to this value. Higher values will yield more precise IOPS and throughput
+units, while lower values will round. Requires a minimum value of 1 and a
 maximum value of 10. Defaults to 4.
 .SS "Error handling"
 .TP
@@ -3526,8 +3566,7 @@ containing two hostnames `h1' and `h2' with IP addresses 192.168.10.120 and
 .RE
 .SH AUTHORS
 .B fio
-was written by Jens Axboe <jens.axboe@oracle.com>,
-now Jens Axboe <axboe@fb.com>.
+was written by Jens Axboe <axboe@kernel.dk>.
 .br
 This man page was written by Aaron Carroll <aaronc@cse.unsw.edu.au> based
 on documentation by Jens Axboe.