From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: David Rientjes <rientjes@google.com>
Cc: Glauber Costa <glommer@parallels.com>,
Anton Vorontsov <anton.vorontsov@linaro.org>,
Pekka Enberg <penberg@kernel.org>, Mel Gorman <mgorman@suse.de>,
Leonid Moiseichuk <leonid.moiseichuk@nokia.com>,
KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
Minchan Kim <minchan@kernel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
John Stultz <john.stultz@linaro.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linaro-kernel@lists.linaro.org, patches@linaro.org,
kernel-team@android.com, linux-man@vger.kernel.org,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Michal Hocko <mhocko@suse.cz>,
Johannes Weiner <hannes@cmpxchg.org>, Tejun Heo <tj@kernel.org>
Subject: Re: [RFC v3 0/3] vmpressure_fd: Linux VM pressure notifications
Date: Wed, 21 Nov 2012 11:30:56 +0200 [thread overview]
Message-ID: <20121121093056.GA31882@shutemov.name> (raw)
In-Reply-To: <alpine.DEB.2.00.1211200950120.4200@chino.kir.corp.google.com>
On Tue, Nov 20, 2012 at 10:02:45AM -0800, David Rientjes wrote:
> On Mon, 19 Nov 2012, Glauber Costa wrote:
>
> > >> In the case I outlined below, for backwards compatibility. What I
> > >> actually mean is that memcg *currently* allows arbitrary notifications.
> > >> One way to merge those, while moving to a saner 3-point notification, is
> > >> to still allow the old writes and fit them in the closest bucket.
> > >>
> > >
> > > Yeah, but I'm wondering why three is the right answer.
> > >
> >
> > This is unrelated to what I am talking about.
> > I am talking about pre-defined values with a specific event meaning (in
> > his patchset, 3) vs arbitrary numbers valued in bytes.
> >
>
> Right, and I don't see how you can map the memcg thresholds onto Anton's
> scheme
BTW, there's interface for OOM notification in memcg. See oom_control.
I guess other pressure levels can also fit to the interface.
--
Kirill A. Shutemov
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next prev parent reply other threads:[~2012-11-21 9:30 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-07 10:53 [RFC v3 0/3] vmpressure_fd: Linux VM pressure notifications Anton Vorontsov
2012-11-07 11:01 ` [RFC 1/3] mm: Add " Anton Vorontsov
2012-11-08 17:01 ` Mel Gorman
2012-11-08 17:14 ` Kirill A. Shutemov
2012-11-13 18:38 ` Jonathan Corbet
2012-11-07 11:01 ` [RFC 2/3] tools/testing: Add vmpressure-test utility Anton Vorontsov
2012-11-07 11:01 ` [RFC 3/3] man-pages: Add man page for vmpressure_fd(2) Anton Vorontsov
2012-11-07 14:19 ` Rik van Riel
2012-11-20 5:52 ` Andrew Morton
2012-11-20 6:24 ` Anton Vorontsov
2012-11-20 18:12 ` David Rientjes
2012-11-21 15:01 ` Mel Gorman
2012-11-21 19:39 ` Andrew Morton
2012-11-22 8:52 ` Pekka Enberg
2012-11-07 11:21 ` [RFC v3 0/3] vmpressure_fd: Linux VM pressure notifications Kirill A. Shutemov
2012-11-07 11:28 ` Pekka Enberg
2012-11-07 11:43 ` Kirill A. Shutemov
2012-11-15 3:21 ` David Rientjes
2012-11-15 3:39 ` Anton Vorontsov
2012-11-15 3:59 ` David Rientjes
2012-11-15 7:34 ` Anton Vorontsov
2012-11-15 8:11 ` David Rientjes
2012-11-15 8:52 ` Anton Vorontsov
2012-11-15 21:25 ` David Rientjes
2012-11-16 9:33 ` Glauber Costa
2012-11-16 20:04 ` David Rientjes
2012-11-16 21:12 ` Glauber Costa
2012-11-16 21:57 ` David Rientjes
2012-11-17 1:21 ` Anton Vorontsov
2012-11-18 22:53 ` David Rientjes
2012-11-19 14:00 ` Glauber Costa
2012-11-19 13:57 ` Glauber Costa
2012-11-20 18:02 ` David Rientjes
2012-11-21 9:30 ` Kirill A. Shutemov [this message]
2012-11-21 11:32 ` leonid.moiseichuk
2012-11-21 11:54 ` Glauber Costa
2012-11-21 13:48 ` leonid.moiseichuk
2012-11-26 21:35 ` Michal Hocko
2012-11-19 14:19 ` Glauber Costa
2012-11-20 18:23 ` David Rientjes
2012-11-21 8:27 ` Glauber Costa
2012-11-21 8:46 ` Anton Vorontsov
2012-11-21 9:25 ` Glauber Costa
2012-11-07 11:43 ` Anton Vorontsov
2012-11-07 12:11 ` Kirill A. Shutemov
2012-11-07 12:28 ` Anton Vorontsov
2012-11-07 17:20 ` Greg Thelen
2012-11-07 20:52 ` Pekka Enberg
2012-11-07 11:30 ` Pekka Enberg
2012-11-07 11:31 ` Pekka Enberg
2012-11-07 12:06 ` Anton Vorontsov
2012-11-09 8:32 ` Luiz Capitulino
2012-11-09 9:04 ` Anton Vorontsov
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