Messages in this thread | | | Date | Tue, 20 Dec 2011 18:56:54 +0400 | From | Anton Vorontsov <> | Subject | Re: Android low memory killer vs. memory pressure notifications |
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On Mon, Dec 19, 2011 at 11:12:09AM -0800, David Rientjes wrote: > On Mon, 19 Dec 2011, Michal Hocko wrote: > > > page_cgroup is 16B per page and with the current Johannes' memcg > > naturalization work (in the mmotm tree) we are down to 8B per page (we > > got rid of lru). Kamezawa has some patches to get rid of the flags so we > > will be down to 4B per page on 32b. Is this still too much? > > I would be really careful about a yet another lowmem notification > > mechanism. > > > > There was always general interest in a low memory notification mechanism > even prior to memcg, see http://lwn.net/Articles/268732/ from Marcelo and > KOSAKI-san. The desire is not only to avoid the metadata overhead of > memcg, but also to avoid cgroups entirely.
Hm, assuming that metadata is no longer an issue, why do you think avoiding cgroups would be a good idea?
Thanks,
-- Anton Vorontsov Email: cbouatmailru@gmail.com
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