2011/12/20 KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxx>: >> - Use memory controller cgroup (CGROUP_MEM_RES_CTLR) notifications from >> the kernel side, plus userland "manager" that would kill applications. >> >> The main downside of this approach is that mem_cg needs 20 bytes per >> page (on a 32 bit machine). So on a 32 bit machine with 4K pages >> that's approx. 0.5% of RAM, or, in other words, 5MB on a 1GB machine. >> >> 0.5% doesn't sound too bad, but 5MB does, quite a little bit. So, >> mem_cg feels like an overkill for this simple task (see the driver at >> the very bottom). > > > Kamezawa-san, Is 20bytes/page still correct now? If I remember correctly, > you improved space efficiency of memcg. > Johannes removed 4 bytes. It's in upstream. Johannes removed 8bytes. It's now in linux-next. I'm preparing a patch to remove more 4 bytes. Thanks, -Kame -- 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