Re: [ckrm-tech] [RFC] Resource Management - Infrastructure choices

["Paul Menage" <menage@google.com>]

On 10/30/06, Paul Menage <menage@google.com> wrote:
>
> - there is a single hierarchy of process containers
> - each process is a member of exactly one process container
>
> - for each resource controller, there's a hierarchy of resource "nodes"
> - each process container is associated with exactly one resource node
> of each type
>
> - by default, the process container hierarchy and the resource node
> hierarchies are isomorphic, but that can be controlled by userspace.

A simpler alternative that I thought about would be to restrict the
resource contoller hierarchies to be strict subtrees of the process
container hierarchy - so at each stage in the hierarchy, a container
could either inherit its parent's node for a given resource or have a
new child node (i.e. be in the same cpuset or be in a fresh child
cpuset).

This is a much simpler abstraction to present to userspace (simply one
flag for each resource controller in each process container) and might
be sufficient for all reasonable scenarios.

Paul