On Mon, 17 Feb 2014, Joonsoo Kim wrote: > On Wed, Feb 12, 2014 at 10:51:37PM -0800, Nishanth Aravamudan wrote: > > Hi Joonsoo, > > Also, given that only ia64 and (hopefuly soon) ppc64 can set > > CONFIG_HAVE_MEMORYLESS_NODES, does that mean x86_64 can't have > > memoryless nodes present? Even with fakenuma? Just curious. x86_64 currently does not support memoryless nodes otherwise it would have set CONFIG_HAVE_MEMORYLESS_NODES in the kconfig. Memoryless nodes are a bit strange given that the NUMA paradigm is to have NUMA nodes (meaning memory) with processors. MEMORYLESS nodes means that we have a fake NUMA node without memory but just processors. Not very efficient. Not sure why people use these configurations. > I don't know, because I'm not expert on NUMA system :) > At first glance, fakenuma can't be used for testing > CONFIG_HAVE_MEMORYLESS_NODES. Maybe some modification is needed. Well yeah. You'd have to do some mods to enable that testing. -- 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>