X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=468772d7227a3a2c9a9cca50436e7c4bc4ebbf0b;hp=a2503e9a6b73b093aee91c65ba2255f9cc690746;hb=199710f5822cf22bf76107f26993a9468f93a422;hpb=350a535d23c07b19f6358ac4d7593d0f905f428b

diff --git a/HOWTO b/HOWTO
index a2503e9a..468772d7 100644
--- a/HOWTO
+++ b/HOWTO
@@ -2339,8 +2339,13 @@ I/O depth
 	``serialize_overlap`` tells fio to avoid provoking this behavior by explicitly
 	serializing in-flight I/Os that have a non-zero overlap. Note that setting
 	this option can reduce both performance and the :option:`iodepth` achieved.
-	Additionally this option does not work when :option:`io_submit_mode` is set to
-	offload. Default: false.
+
+	This option only applies to I/Os issued for a single job except when it is
+	enabled along with :option:`io_submit_mode`=offload. In offload mode, fio
+	will check for overlap among all I/Os submitted by offload jobs with :option:`serialize_overlap`
+	enabled.
+
+	Default: false.
 
 .. option:: io_submit_mode=str