The value of "cpuset.mems" stays constant until the next update
and won't be affected by any memory nodes hotplug events.
+ Setting a non-empty value to "cpuset.mems" causes memory of
+ tasks within the cgroup to be migrated to the designated nodes if
+ they are currently using memory outside of the designated nodes.
+
+ There is a cost for this memory migration. The migration
+ may not be complete and some memory pages may be left behind.
+ So it is recommended that "cpuset.mems" should be set properly
+ before spawning new tasks into the cpuset. Even if there is
+ a need to change "cpuset.mems" with active tasks, it shouldn't
+ be done frequently.
+
cpuset.mems.effective
A read-only multiple values file which exists on all
cpuset-enabled cgroups.