Michal Hocko <mhocko@xxxxxxx> writes: > > Another option would be to use sysctl values for the top cpuset as a > default. But then why not just do it manually without sysctl? I want to provide an alternative to having to use cpusets to use this, that is actually usable for normal people. Also this is really a global setting in my mind. > If you create a cpuset and explicitly disable spreading then you would > be quite surprised that your process gets pages from all nodes, no? If I enable it globally using a sysctl I would be quite surprised if some cpuset can override it. That argument is equally valid :-) The user configured an inconsistent configuration, and the kernel has to make a decision somehow. In the end it is arbitary, but not having to check the cpuset here is a lot cheaper, so I prefer the "sysctl has priority" option. Could EINVAL the cpuset setting when the sysctl is set though (but it's difficult to do the other way round). -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>