|| ||Pavel Emelianov <email@example.com>|
|| ||Andrew Morton <firstname.lastname@example.org>, Paul Menage <email@example.com>,
Srivatsa Vaddagiri <firstname.lastname@example.org>,
Balbir Singh <email@example.com>|
|| ||[RFC][PATCH 0/7] Resource controllers based on process containers|
|| ||Tue, 06 Mar 2007 17:42:52 +0300|
Linux Kernel Mailing List <firstname.lastname@example.org>,
email@example.com, Kirill Korotaev <firstname.lastname@example.org>|
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
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
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.