Messages in this thread | | | Date | Wed, 21 Nov 2012 11:30:56 +0200 | From | "Kirill A. Shutemov" <> | Subject | Re: [RFC v3 0/3] vmpressure_fd: Linux VM pressure notifications |
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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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