linux-kernel - Re: [PATCH v8 0/6] cgroup/cpuset: Add new cpuset partition type & empty effecitve cpus

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Date:   Wed, 10 Nov 2021 19:04:36 +0100
From:   Jan Kiszka <jan.kiszka@...mens.com>
To:     Michal Koutný <mkoutny@...e.com>
Cc:     Marcelo Tosatti <mtosatti@...hat.com>,
        "Moessbauer, Felix" <felix.moessbauer@...mens.com>,
        "longman@...hat.com" <longman@...hat.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "cgroups@...r.kernel.org" <cgroups@...r.kernel.org>,
        "corbet@....net" <corbet@....net>,
        "frederic@...nel.org" <frederic@...nel.org>,
        "guro@...com" <guro@...com>,
        "hannes@...xchg.org" <hannes@...xchg.org>,
        "juri.lelli@...hat.com" <juri.lelli@...hat.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "lizefan.x@...edance.com" <lizefan.x@...edance.com>,
        "pauld@...hat.com" <pauld@...hat.com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "shuah@...nel.org" <shuah@...nel.org>,
        "tj@...nel.org" <tj@...nel.org>,
        "henning.schild@...mens.com" <henning.schild@...mens.com>
Subject: Re: [PATCH v8 0/6] cgroup/cpuset: Add new cpuset partition type &
 empty effecitve cpus

On 10.11.21 18:52, Michal Koutný wrote:
> On Wed, Nov 10, 2021 at 05:15:41PM +0100, Jan Kiszka <jan.kiszka@...mens.com> wrote:
>> Is there pthread_attr_setcgroup_np()?
> 
> If I'm not mistaken the 'p' in pthreads stands for POSIX and cgroups are
> Linux specific so you won't find that (unless you implement that
> yourself). ¯\_(ツ)_/¯
> 

I know what it stands for :). But I don't want to re-implement pthreads
just to have a single creation-time configurable injected. Neither would
developer of standard application, e.g. libvirt for the rt-kvm special
case while most of their use cases are fine with regular pthread APIs. I
think there is also a demand for a programming model that fits into
existing ones.

Jan

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