On Mon, 2006-06-12 at 18:00 -0700, jnorman wrote: > Where can I find the patches and instructions for hot-remove for memory > hotplug? If you'd like to document all of this and post it somewhere, I'm sure it would be appreciated. We could probably use a wiki or something. Mel Gorman (cc'd) probably has the most recent set of patches handy. > For the test cases I need to be able to determine how much physical > memory the system has without the memory being onlined, is there a way > to do this? All memory known to the kernel is presented in the same place as the online memory: /sys/devices/system/memory. The only difference is that the state shows 'offline'. > I will also need a way to migrate pages in memory and then be able to > verify that they have been successfully migrated, how would I go about > that? This is actually a completely separate topic. There is some NUMA page migration functionality in the kernel, but it isn't tied in to hotplug as far as I know. -- Dave