Hello, Michal. On Mon, Jan 29, 2018 at 11:46:57AM +0100, Michal Hocko wrote: > @@ -1292,7 +1292,11 @@ the memory controller considers only cgroups belonging to the sub-tree > of the OOM'ing cgroup. > > The root cgroup is treated as a leaf memory cgroup, so it's compared > -with other leaf memory cgroups and cgroups with oom_group option set. > +with other leaf memory cgroups and cgroups with oom_group option > +set. Due to internal implementation restrictions the size of the root > +cgroup is a cumulative sum of oom_badness of all its tasks (in other > +words oom_score_adj of each task is obeyed). This might change in the > +future. Thanks, we can definitely use more documentation. However, it's a bit difficult to follow. Maybe expand it to a separate paragraph on the current behavior with a clear warning that the default OOM heuristics is subject to changes? Thanks. -- tejun -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
