-.TH fio 1 "October 2013" "User Manual"
+.TH fio 1 "December 2014" "User Manual"
.SH NAME
fio \- flexible I/O tester
.SH SYNOPSIS
.BI buffer_compress_percentage \fR=\fPint
If this is set, then fio will attempt to provide IO buffer content (on WRITEs)
that compress to the specified level. Fio does this by providing a mix of
-random data and zeroes. Note that this is per block size unit, for file/disk
-wide compression level that matches this setting, you'll also want to set
-\fBrefill_buffers\fR.
+random data and a fixed pattern. The fixed pattern is either zeroes, or the
+pattern specified by \fBbuffer_pattern\fR. If the pattern option is used, it
+might skew the compression ratio slightly. Note that this is per block size
+unit, for file/disk wide compression level that matches this setting. Note
+that this is per block size unit, for file/disk wide compression level that
+matches this setting, you'll also want to set refill_buffers.
.TP
.BI buffer_compress_chunk \fR=\fPint
See \fBbuffer_compress_percentage\fR. This setting allows fio to manage how
.BI startdelay \fR=\fPirange
Delay start of job for the specified number of seconds. Supports all time
suffixes to allow specification of hours, minutes, seconds and
-milliseconds - seconds are the default if a unit is ommited.
+milliseconds - seconds are the default if a unit is omitted.
Can be given as a range which causes each thread to choose randomly out of the
range.
.TP
.B fio
was written by Jens Axboe <jens.axboe@oracle.com>,
-now Jens Axboe <jaxboe@fusionio.com>.
+now Jens Axboe <axboe@fb.com>.
.br
This man page was written by Aaron Carroll <aaronc@cse.unsw.edu.au> based
on documentation by Jens Axboe.