| Date | Thu, 14 Feb 2019 07:48:17 -0800 | From | Tejun Heo <> | Subject | Re: [PATCH v7 11/15] sched/core: uclamp: Extend CPU's cgroup controller |
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Hello,
On Fri, Feb 08, 2019 at 10:05:50AM +0000, Patrick Bellasi wrote: > a) are available only for non-root nodes, both on default and legacy > hierarchies, while system wide clamps are defined by a generic > interface which does not depends on cgroups > > b) do not enforce any constraints and/or dependencies between the parent > and its child nodes, thus relying: > - on permission settings defined by the system management software, > to define if subgroups can configure their clamp values > - on the delegation model, to ensure that effective clamps are > updated to consider both subgroup requests and parent group > constraints
I'm not sure about this hierarchical behavior.
> c) have higher priority than task-specific clamps, defined via > sched_setattr(), thus allowing to control and restrict task requests
and I have some other concerns about the interface, but let's discuss them once the !cgroup portion is settled.
Thanks.
-- tejun
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