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Groups > linux.kernel > #1646045
| From | Mike Galbraith <efault@gmx.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint |
| Date | 2017-05-20 04:20 +0200 |
| Message-ID | <tJ29Q-36l-3@gated-at.bofh.it> (permalink) |
| References | <tHoo9-lZ-3@gated-at.bofh.it> <tHoo9-lZ-21@gated-at.bofh.it> <tIWQP-7ue-39@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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[RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Waiman Long <longman@redhat.com> - 2017-05-15 15:40 +0200
Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Tejun Heo <tj@kernel.org> - 2017-05-19 22:40 +0200
Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Mike Galbraith <efault@gmx.de> - 2017-05-20 04:20 +0200
Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Tejun Heo <tj@kernel.org> - 2017-05-24 19:10 +0200
Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Waiman Long <longman@redhat.com> - 2017-05-22 19:00 +0200
Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Tejun Heo <tj@kernel.org> - 2017-05-24 19:10 +0200
Re: [RFC PATCH v2 12/17] cgroup: Remove cgroup v2 no internal process constraint Waiman Long <longman@redhat.com> - 2017-05-24 20:30 +0200
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