X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=HOWTO;h=a2503e9a6b73b093aee91c65ba2255f9cc690746;hb=a67c6dd1c28bd9aae73d9b3443d3a8ae6c070b1b;hp=45cf0bdf4b7367a870f472d23aac8e45de60e43c;hpb=55bfd8c81c25d7953b4d6f9320e46af5cb790b0c;p=fio.git

diff --git a/HOWTO b/HOWTO
index 45cf0bdf..a2503e9a 100644
--- a/HOWTO
+++ b/HOWTO
@@ -2559,12 +2559,13 @@ I/O replay
 
 .. option:: replay_align=int
 
-	Force alignment of I/O offsets and lengths in a trace to this power of 2
-	value.
+	Force alignment of the byte offsets in a trace to this value. The value
+	must be a power of 2.
 
 .. option:: replay_scale=int
 
-	Scale sector offsets down by this factor when replaying traces.
+	Scale byte offsets down by this factor when replaying traces. Should most
+	likely use :option:`replay_align` as well.
 
 .. option:: replay_skip=str
 
@@ -3000,6 +3001,10 @@ Steady state
 	data from the rolling collection window. Threshold limits can be expressed
 	as a fixed value or as a percentage of the mean in the collection window.
 
+	When using this feature, most jobs should include the :option:`time_based`
+	and :option:`runtime` options or the :option:`loops` option so that fio does not
+	stop running after it has covered the full size of the specified file(s) or device(s).
+
 		**iops**
 			Collect IOPS data. Stop the job if all individual IOPS measurements
 			are within the specified limit of the mean IOPS (e.g., ``iops:2``