Messages in this thread | | | Date | Tue, 06 Mar 2007 17:42:52 +0300 | From | Pavel Emelianov <> | Subject | [RFC][PATCH 0/7] Resource controllers based on process containers |
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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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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