Messages in this thread | | | Subject | Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint | From | Mike Galbraith <> | Date | Sat, 20 May 2017 04:10:07 +0200 |
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On Fri, 2017-05-19 at 16:38 -0400, Tejun Heo wrote: > Hello, Waiman. > > On Mon, May 15, 2017 at 09:34:11AM -0400, Waiman Long wrote: > > The rationale behind the cgroup v2 no internal process constraint is > > to avoid resouorce competition between internal processes and child > > cgroups. However, not all controllers have problem with internal > > process competiton. Enforcing this rule may lead to unnatural process > > hierarchy and unneeded levels for those controllers. > > This isn't necessarily something we can determine by looking at the > current state of controllers. It's true that some controllers - pid > and perf - inherently only care about membership of each task but at > the same time neither really suffers from the constraint either. CPU > which is the problematic one here...
(+ cpuacct + cpuset)
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