On Tue, Apr 13, 2021 at 12:40:09AM +0800, yulei.kernel@xxxxxxxxx wrote: > From: Yulei Zhang <yuleixzhang@xxxxxxxxxxx> > > Last time we introduce the idea of adding prioritized tasks management > to control group. Sometimes we may assign the same amount of resources > to multiple cgroups due to the environment restriction, but we still > hope there are preference order to handle the tasks in those cgroups, > the 'prio' attribute may help to do the ranking jobs. > > The default value of "priority" is set to 0 which means the highest > priority, and the totally levels of priority is defined by > CGROUP_PRIORITY_MAX. Each subsystem could register callback to receive the > priority change notification for their own purposes. > > In this v2 patch we apply a simple rule to the oom hanlder base on the > order of priority to demonstrate the intention about adding this attribute. > When enable the prioritized oom, it will perfer to pick up the victim from the > memory cgroup with lower priority, and try the best to keep the tasks > alive in high ranked memcg. I don't think the discussion in the previous thread led anywhere. Please consider this series nacked for now. Thanks. -- tejun
