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From: Mike Galbraith <efault@gmx.de>
To: Paul Turner <pjt@google.com>, Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>,
	"lizefan@huawei.com" <lizefan@huawei.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Ingo Molnar <mingo@redhat.com>,
	Andy Lutomirski <luto@amacapital.net>,
	cgroups <cgroups@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	kernel-team <kernel-team@fb.com>,
	"lvenanci@redhat.com" <lvenanci@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCHSET for-4.11] cgroup: implement cgroup v2 thread mode
Date: Mon, 13 Feb 2017 06:28:50 +0100	[thread overview]
Message-ID: <1486963730.5912.89.camel@gmx.de> (raw)
In-Reply-To: <CAPM31RJaJjFwenC36Abij+EdzO3KBm-DEjQ_crSmzrtrrn2N2A@mail.gmail.com>

On Sun, 2017-02-12 at 13:16 -0800, Paul Turner wrote:
> 
> 
> On Thursday, February 9, 2017, Peter Zijlstra <peterz@infradead.org> wrote:
> > On Thu, Feb 09, 2017 at 05:07:16AM -0800, Paul Turner wrote:
> > > The only case that this does not support vs ".threads" would be some
> > > hybrid where we co-mingle threads from different processes (with the
> > > processes belonging to the same node in the hierarchy).  I'm not aware
> > > of any usage that looks like this.
> > 
> > If I understand you right; this is a fairly common thing with RT where
> > we would stuff all the !rt threads of the various processes in a 'misc'
> > bucket.
> > 
> > Similarly, it happens that we stuff the various rt threads of processes
> > in a specific (shared) 'rt' bucket.
> > 
> > So I would certainly not like to exclude that setup.
> > 
> 
> Unless you're using rt groups I'm not sure this one really changes.  
> Whether the "misc" threads exist at the parent level or one below
> should not matter.

(with exclusive cpusets, a mask can exist at one and only one location)

  parent reply	other threads:[~2017-02-13  5:29 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-02 20:06 [PATCHSET for-4.11] cgroup: implement cgroup v2 thread mode Tejun Heo
2017-02-02 20:06 ` Tejun Heo
2017-02-02 20:06 ` [PATCH 1/5] cgroup: reorganize cgroup.procs / task write path Tejun Heo
2017-02-02 20:06 ` [PATCH 2/5] cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS Tejun Heo
2017-02-02 20:06 ` [PATCH 3/5] cgroup: introduce cgroup->proc_cgrp and threaded css_set handling Tejun Heo
2017-02-02 20:06   ` Tejun Heo
2017-02-02 20:06 ` [PATCH 4/5] cgroup: implement CSS_TASK_ITER_THREADED Tejun Heo
2017-02-02 20:06 ` [PATCH 5/5] cgroup: implement cgroup v2 thread support Tejun Heo
2017-02-02 20:06   ` Tejun Heo
2017-02-02 21:32 ` [PATCHSET for-4.11] cgroup: implement cgroup v2 thread mode Andy Lutomirski
2017-02-02 21:32   ` Andy Lutomirski
2017-02-02 21:52   ` Tejun Heo
2017-02-02 21:52     ` Tejun Heo
2017-02-03 21:10     ` Andy Lutomirski
2017-02-03 21:10       ` Andy Lutomirski
2017-02-03 21:56       ` Tejun Heo
2017-02-06  9:50     ` Peter Zijlstra
2017-02-06  9:50       ` Peter Zijlstra
2017-02-03 20:20 ` Peter Zijlstra
2017-02-03 20:20   ` Peter Zijlstra
2017-02-03 20:59   ` Tejun Heo
2017-02-03 20:59     ` Tejun Heo
2017-02-06 12:49     ` Peter Zijlstra
2017-02-06 12:49       ` Peter Zijlstra
2017-02-08 23:08       ` Tejun Heo
2017-02-08 23:08         ` Tejun Heo
2017-02-09 10:29         ` Peter Zijlstra
2017-02-09 10:29           ` Peter Zijlstra
2017-02-10 15:45           ` Tejun Heo
2017-02-10 15:45             ` Tejun Heo
2017-02-10 17:51             ` Peter Zijlstra
2017-02-10 17:51               ` Peter Zijlstra
2017-02-12  5:05               ` Tejun Heo
2017-02-12  5:05                 ` Tejun Heo
2017-02-12  6:59                 ` Mike Galbraith
2017-02-12  6:59                   ` Mike Galbraith
2017-02-13  5:45                   ` Mike Galbraith
2017-03-13 19:26                     ` Tejun Heo
2017-03-13 19:26                       ` Tejun Heo
2017-03-14 14:45                       ` Mike Galbraith
2017-02-14 10:35                 ` Peter Zijlstra
2017-03-13 20:05                   ` Tejun Heo
2017-03-13 20:05                     ` Tejun Heo
2017-03-21 12:39                     ` Peter Zijlstra
2017-03-21 12:39                       ` Peter Zijlstra
2017-03-22 14:52                       ` Peter Zijlstra
2017-03-22 14:52                         ` Peter Zijlstra
2017-02-09 13:07 ` Paul Turner
2017-02-09 14:47   ` Peter Zijlstra
2017-02-09 15:08     ` Mike Galbraith
     [not found]     ` <CAPM31RJaJjFwenC36Abij+EdzO3KBm-DEjQ_crSmzrtrrn2N2A@mail.gmail.com>
2017-02-13  5:28       ` Mike Galbraith [this message]
2017-02-10 15:46   ` Tejun Heo
2017-02-10 15:46     ` Tejun Heo

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