linux-kernel - Re: [PATCH v3 09/14] sched/core: uclamp: propagate parent clamps

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <0a26a0de-f9e6-ef77-ceac-eb25bbf01664@arm.com>
Date:   Mon, 20 Aug 2018 12:01:09 +0200
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Patrick Bellasi <patrick.bellasi@....com>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Tejun Heo <tj@...nel.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Paul Turner <pjt@...gle.com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Juri Lelli <juri.lelli@...hat.com>,
        Todd Kjos <tkjos@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Steve Muckle <smuckle@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>
Subject: Re: [PATCH v3 09/14] sched/core: uclamp: propagate parent clamps

On 08/17/2018 05:50 PM, Dietmar Eggemann wrote:
> On 08/17/2018 04:45 PM, Patrick Bellasi wrote:
>> On 17-Aug 15:43, Dietmar Eggemann wrote:
>>> On 08/06/2018 06:39 PM, Patrick Bellasi wrote:

[...]

>> AFAIK the default hierarcy (cgroups v2) has a much more stricy set of
>> requirements for the "delegation model".
> 
> Could be ... I guess I have to study this more.

So I see that this idea with the .effective files is used in Waiman's 
new cpuset cgroupv2 controller proposal.

The cpu controller with you util clamp extension has to be usable under 
cgroupv2 and cgroupv1, I assume?

[...]