linux-kernel - Re: [Documentation] State of CPU controller in cgroup v2

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Message-ID: <1473502137.3857.218.camel@gmail.com>
Date:   Sat, 10 Sep 2016 12:08:57 +0200
From:   Mike Galbraith <umgwanakikbuti@...il.com>
To:     Tejun Heo <tj@...nel.org>, Andy Lutomirski <luto@...capital.net>
Cc:     Ingo Molnar <mingo@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        kernel-team@...com,
        "open list:CONTROL GROUP (CGROUP)" <cgroups@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Paul Turner <pjt@...gle.com>, Li Zefan <lizefan@...wei.com>,
        Linux API <linux-api@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [Documentation] State of CPU controller in cgroup v2

On Fri, 2016-09-09 at 18:57 -0400, Tejun Heo wrote:

> > > As for your example, who performs the cgroup setup and configuration,
> > > the application itself or an external entity?  If an external entity,
> > > how does it know which thread is what?
> > 
> > In my case, it would be a little script that reads a config file that
> > knows all kinds of internal information about the application and its
> > threads.
> 
> I see.  One-of-a-kind custom setup.  This is a completely valid usage;
> however, please also recognize that it's an extremely specific one
> which is niche by definition.

This is the same pigeon hole you placed Google into.  So Google, my
(also decidedly non-petite) users, and now Andy are all sharing the one
of a kind extremely specific niche.. it's becoming a tad crowded.

	-Mike