Add support for specifying UID/GID

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 7a7d14ea0816080d794d25f4d899603e2eee57a8..45a96bb1618182c0251fb8a77a4bdfd1ab6e460b 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -1004,22 +1004,22 @@ continue_on_error=bool  Normally fio will exit the job on the first observed
                given in the stats is the first error that was hit during the
                run.
 
-cgroup_root=str        Root of the mounted blkio cgroup file systems. This is a Linux
-               specific IO controller. If your system doesn't have it mounted,
-               you can do so with:
+cgroup=str     Add job to this control group. If it doesn't exist, it will
+               be created. The system must have a mounted cgroup blkio
+               mount point for this to work. If your system doesn't have it
+               mounted, you can do so with:
 
                # mount -t cgroup -o blkio none /cgroup
 
-               The cgroup_root defaults to /cgroup, if mounted elsewhere
-               please specify this option.
-
-cgroup=str     Add job to this control group. If it doesn't exist, it will
-               be created.
-
 cgroup_weight=int      Set the weight of the cgroup to this value. See
                the documentation that comes with the kernel, allowed values
                are in the range of 100..1000.
 
+uid=int                Instead of running as the invoking user, set the user ID to
+               this value before the thread/process does any work.
+
+gid=int                Set group ID, see uid.
+
 6.0 Interpreting the output
 ---------------------------