Messages in this thread | | | Date | Mon, 19 Dec 2011 11:12:09 -0800 (PST) | From | David Rientjes <> | Subject | Re: Android low memory killer vs. memory pressure notifications |
| |
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.
| |