Add support for cpus_allowed_policy

[fio.git] / HOWTO

diff --git a/HOWTO b/HOWTO
index 4dacd98965ea1d12ecb86d9d3998e57404edfd28..ef2b631d849e7206323623e91d4e236157c58705 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -928,6 +928,17 @@ cpus_allowed=str Controls the same options as cpumask, but it allows a text
                allows a range of CPUs. Say you wanted a binding to CPUs
                1, 5, and 8-15, you would set cpus_allowed=1,5,8-15.
 
+cpus_allowed_policy=str Set the policy of how fio distributes the CPUs
+               specified by cpus_allowed or cpumask. Two policies are
+               supported:
+
+               shared  All jobs will share the CPU set specified.
+               split   Each job will get a unique CPU from the CPU set.
+
+               'shared' is the default behaviour, if the option isn't
+               specified. If split is specified, then fio will error out if
+               there are more jobs defined than CPUs given in the set.
+
 numa_cpu_nodes=str Set this job running on spcified NUMA nodes' CPUs. The
                arguments allow comma delimited list of cpu numbers,
                A-B ranges, or 'all'. Note, to enable numa options support,