Merge branch 'wip-http-engine' of https://github.com/l-mb/fio

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 510041a856b1a9ee576fe382bde721e5ad67c59d..c77dad17922dd3081f808946178f8a3d8459f227 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -952,18 +952,24 @@ Target file/device
 
        Unlink job files after each iteration or loop.  Default: false.
 
-.. option:: zonesize=int
+.. option:: zonerange=int
 
-       Divide a file into zones of the specified size. See :option:`zoneskip`.
+       Size of a single zone in which I/O occurs. See also :option:`zonesize`
+       and :option:`zoneskip`.
 
-.. option:: zonerange=int
+.. option:: zonesize=int
 
-       Give size of an I/O zone.  See :option:`zoneskip`.
+       Number of bytes to transfer before skipping :option:`zoneskip`
+       bytes. If this parameter is smaller than :option:`zonerange` then only
+       a fraction of each zone with :option:`zonerange` bytes will be
+       accessed.  If this parameter is larger than :option:`zonerange` then
+       each zone will be accessed multiple times before skipping
 
 .. option:: zoneskip=int
 
-       Skip the specified number of bytes when :option:`zonesize` data has been
-       read. The two zone options can be used to only do I/O on zones of a file.
+       Skip the specified number of bytes when :option:`zonesize` data have
+       been transferred. The three zone options can be used to do strided I/O
+       on a file.
 
 
 I/O type