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From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Waiman Long <longman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: "Li Zefan" <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
	"Johannes Weiner"
	<hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
	"Jonathan Corbet" <corbet-T1hC0tSOHrs@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	"Mike Galbraith" <efault-Mmb7MZpHnFY@public.gmane.org>,
	"Christian Brauner"
	<christian.brauner-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>,
	"Stéphane Graber"
	<stgraber-GeWIH/nMZzLQT0dZR+AlfA@public.gmane.org>,
	"Serge Hallyn" <serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH v3] cpuset: Enable cpuset controller in default hierarchy
Date: Mon, 27 Nov 2017 13:42:32 -0800	[thread overview]
Message-ID: <20171127214232.GT983427@devbig577.frc2.facebook.com> (raw)
In-Reply-To: <8a5ba419-2b02-5b6a-462f-34106cc575ab-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Hello, Waiman.

On Mon, Nov 27, 2017 at 04:19:57PM -0500, Waiman Long wrote:
> > Let's start just with [e]cpus and [e]mems.  The flags interface looks
> > fine but the implementations of these features are really bad and
> > cgroup2 doesn't migrate resources for other controllers either anyway.
> 
> That is added because the mem_migrate feature is used in libvirt, I
> think. I am thinking of add a "[EXPERIMENTAL]" tag to the flags to
> indicate that it is subject to change.

I see.  Do you happen to know what it's used for and why that's
necessary just so that we can evaluate it better?  I'm not quite sure
what adding [EXPERIMENTAL] tag would achieve.  If we expose the
feature and people use it, we just have to keep it anyway.

Thanks.

-- 
tejun

  parent reply	other threads:[~2017-11-27 21:42 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-06 21:10 [PATCH v3] cpuset: Enable cpuset controller in default hierarchy Waiman Long
2017-10-25 15:50 ` Waiman Long
2017-10-26 14:39   ` Tejun Heo
     [not found]     ` <20171026143908.GD59538-4dN5La/x3IkLX0oZNxdnEQ2O0Ztt9esIQQ4Iyu8u01E@public.gmane.org>
2017-10-26 18:12       ` Waiman Long
     [not found]         ` <2814be69-8dc1-b2f8-406e-cc4dda289d94-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-10-26 20:59           ` Christian Brauner
2017-11-14 17:49         ` Waiman Long
     [not found] ` <1507324230-22996-1-git-send-email-longman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-11-27 21:04   ` Tejun Heo
2017-11-27 21:19     ` Waiman Long
     [not found]       ` <8a5ba419-2b02-5b6a-462f-34106cc575ab-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-11-27 21:42         ` Tejun Heo [this message]
2017-11-27 21:47           ` Waiman Long

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