Add support for blkio cgroups on Linux

[fio.git] / fio.1

diff --git a/fio.1 b/fio.1
index 4445d0a3a99989191c70e8359e8c8bc82248613e..648b4e9c6d73fb3c040aed3167e8d925a98e1e17 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -725,13 +725,22 @@ entering the kernel with a gettimeofday() call. The CPU set aside for doing
 these time calls will be excluded from other uses. Fio will manually clear it
 from the CPU mask of other jobs.
 .TP
 these time calls will be excluded from other uses. Fio will manually clear it
 from the CPU mask of other jobs.
 .TP

-.BI continue_on_error \fR=\fPbool
-Normally fio will exit the job on the first observed failure. If this option is
-set, fio will continue the job when there is a 'non-fatal error'
-(\fBEIO\fR or \fBEILSEQ\fR) until the runtime is exceeded or the I/O size
-specified is completed. If this option is used, there are two more stats that
-are appended, the total error count and the first error. The error field given
-in the stats is the first error that was hit during the run.
+.BI cgroup_root \fR=\fPstr
+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:
+
+# mount -t cgroup -o blkio none /cgroup
+
+The cgroup_root defaults to /cgroup, if mounted elsewhere please specify this
+option.
+.TP
+.BI cgroup \fR=\fPstr
+Add job to this control group. If it doesn't exist, it will be created.
+.TP
+.BI cgroup_weight \fR=\fPint
+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.

 .SH OUTPUT
 While running, \fBfio\fR will display the status of the created jobs.  For
 example:
 .SH OUTPUT
 While running, \fBfio\fR will display the status of the created jobs.  For
 example: