All About the Linux Kernel: Cgroup's Redesign (Linux.com)
Linux.com has a high-level look at control groups (cgroups), focusing on the problems with the current implementation and the plans to fix them going forward. It also looks at what the systemd project is doing to support a single, unified controller hierarchy, rather than the multiple hierarchies that exist today. "'This is partly because cgroup tends to add complexity and overhead to the existing subsystems and building and bolting something on the side is often the path of the least resistance,' said Tejun Heo, Linux kernel cgroup subsystem maintainer. 'Combined with the fact that cgroup has been exploring new areas without firm established examples to follow, this led to some questionable design choices and relatively high level of inconsistency.'"