Fio 1.39

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 6c7f05b9efde3334e5260b4c86371216d43de3b3..19304aefc87d92bc6fd17a3fd28f6768c79f8550 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -942,7 +942,7 @@ read_iolog=str      Open an iolog with the specified file name and replay the
                to replay a workload captured by blktrace. See blktrace
                for how to capture such logging data. For blktrace replay,
                the file needs to be turned into a blkparse binary data
-               file first (blktrace <device> -d file_for_fio.bin).
+               file first (blkparse <device> -o /dev/null -d file_for_fio.bin).
 
 write_bw_log=str If given, write a bandwidth log of the jobs in this job
                file. Can be used to store data of the bandwidth of the
@@ -1036,6 +1036,12 @@ 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.
 
+cgroup_nodelete=bool Normally fio will delete the cgroups it has created after
+               the job completion. To override this behavior and to leave
+               cgroups around after the job completion, set cgroup_nodelete=1.
+               This can be useful if one wants to inspect various cgroup
+               files after job completion. Default: false
+
 uid=int                Instead of running as the invoking user, set the user ID to
                this value before the thread/process does any work.