docs: update cmdprio_percentage with note about root user

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index a2379f9816c2b0103191ff15338d9180527bf896..9e9e1b1adcd46ea5fb42ded350e6b0ce4ef65ea0 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -1806,7 +1806,8 @@ Set the percentage of I/O that will be issued with higher priority by setting
 the priority bit. Non-read I/O is likely unaffected by ``cmdprio_percentage``.
 This option cannot be used with the `prio` or `prioclass` options. For this
 option to set the priority bit properly, NCQ priority must be supported and
-enabled and `direct=1' option must be used.
+enabled and `direct=1' option must be used. fio must also be run as the root
+user.
 .TP
 .BI (io_uring)fixedbufs
 If fio is asked to do direct IO, then Linux will map pages for each IO call, and