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. -- 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>