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@xxxxxxxxx -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>