This patchset adds RSS, accounting and control and limiting the number of tasks and files within container.
Based on top of Paul Menage's container subsystem v7 RSS controller includes per-container RSS accounter, reclamation and OOM killer. It behaves like standalone machine - when container runs out of resources it tries to reclaim some pages and if it doesn't succeed in it kills some task which mm_struct belongs to container in question. Num tasks and files containers are very simple and self-descriptive from code. As discussed before when a task moves from one container to another no resources follow it - they keep holding the container they were allocated in. The difficulties met during using of Pauls' containers were: 1. Container fork hook is placed before new task changes. This makes impossible of handling fork properly. I.e. new mm_struct should have pointer to RSS container, but we don't have one at that early time. 2. Extended containers may register themselves too late. Kernel threads/helpers start forking, opening files and touching pages much earlier. This patchset workarounds this in not-so-cute manner and I'm waiting for Paul's comments on this issue. _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
