Fixes bug: stale LAST_POS(f) is not being reset

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index ca8a5ca53509332f0728de2bf563538b200a64c8..b8082afdc082860fb7db3391d4b110164c994217 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -321,7 +321,7 @@ are likely to be issued. Default: true.
 .TP
 .BI size \fR=\fPint
 Total size of I/O for this job.  \fBfio\fR will run until this many bytes have
-been transfered, unless limited by other options (\fBruntime\fR, for instance).
+been transferred, unless limited by other options (\fBruntime\fR, for instance).
 Unless \fBnrfiles\fR and \fBfilesize\fR options are given, this amount will be
 divided between the available files for the job. If not set, fio will use the
 full size of the given files or devices. If the the files do not exist, size
@@ -344,9 +344,10 @@ that is given). If \fBfilesize\fR is not specified, each created file is the
 same size.
 .TP
 .BI blocksize \fR=\fPint[,int] "\fR,\fB bs" \fR=\fPint[,int]
-Block size for I/O units.  Default: 4k.  Values for reads and writes can be
-specified separately in the format \fIread\fR,\fIwrite\fR, either of
-which may be empty to leave that value at its default.
+Block size for I/O units.  Default: 4k.  Values for reads, writes, and trims
+can be specified separately in the format \fIread\fR,\fIwrite\fR,\fItrim\fR
+either of which may be empty to leave that value at its default. If a trailing
+comma isn't given, the remainder will inherit the last value set.
 .TP
 .BI blocksize_range \fR=\fPirange[,irange] "\fR,\fB bsrange" \fR=\fPirange[,irange]
 Specify a range of I/O block sizes.  The issued I/O unit will always be a
@@ -378,6 +379,12 @@ for using direct IO, though it usually depends on the hardware block size.
 This option is mutually exclusive with using a random map for files, so it
 will turn off that option.
 .TP
+.BI bs_is_seq_rand \fR=\fPbool
+If this option is set, fio will use the normal read,write blocksize settings as
+sequential,random instead. Any random read or write will use the WRITE
+blocksize settings, and any sequential read or write will use the READ
+blocksize setting.
+.TP
 .B zero_buffers
 Initialise buffers with all zeros. Default: fill buffers with random data.
 .TP
@@ -569,6 +576,13 @@ that starts at 0 and is incremented for each job. This option is useful if
 there are several jobs which are intended to operate on a file in parallel in
 disjoint segments, with even spacing between the starting points.
 .TP
+.BI number_ios \fR=\fPint
+Fio will normally perform IOs until it has exhausted the size of the region
+set by \fBsize\fR, or if it exhaust the allocated time (or hits an error
+condition). With this setting, the range/size can be set independently of
+the number of IOs to perform. When fio reaches this number, it will exit
+normally and report status.
+.TP
 .BI fsync \fR=\fPint
 How many I/Os to perform before issuing an \fBfsync\fR\|(2) of dirty data.  If
 0, don't sync.  Default: 0.
@@ -648,10 +662,8 @@ fio will disable use of the random map.
 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.
+sequential. It is possible to set different values for reads, writes, and
+trim. To do so, simply use a comma separated list. See \fBblocksize\fR.
 .TP
 .B norandommap
 Normally \fBfio\fR will cover every block of the file when doing random I/O. If
@@ -1225,6 +1237,9 @@ The TCP or UDP port to bind to or connect to.
 The IP address of the network interface used to send or receive UDP multicast
 packets.
 .TP
+.BI (net,netsplice)ttl \fR=\fPint
+Time-to-live value for outgoing UDP multicast packets. Default: 1
+.TP
 .BI (net,netsplice)nodelay \fR=\fPbool
 Set TCP_NODELAY on TCP connections.
 .TP