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    SubjectRe: [PATCH 00/10] cgroups: Task counter subsystem v6
    On Thu, Nov 3, 2011 at 10:06 AM, Glauber Costa <> wrote:
    > Sorry if I wasn't clear: It removes the need to walk multiple independent
    > hierarchies. The walk is done only once.

    You're talking about at fork time, and the concern is the cache
    footprint involved in walking up the parent pointer chain?

    Isn't that an argument against multiple hierarchies (which is a
    decision for the admin), rather than against more subsystem
    flexibility? If multiple subsystems on the same hierarchy each need to
    walk up the pointer chain on the same event, then after the first
    subsystem has done so the chain will be in cache for any subsequent
    walks from other subsystems.


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