PATCH 0/5 hugetlb: numa control of persistent huge pages alloc/free Against: 2.6.31-rc6-mmotm-090820-1918 This is V4 of a series of patches to provide control over the location of the allocation and freeing of persistent huge pages on a NUMA platform. This series uses the task NUMA mempolicy of the task modifying "nr_hugepages" to constrain the affected nodes. This method is based on Mel Gorman's suggestion to use task mempolicy. One of the benefits of this method is that it does not *require* modification to hugeadm(8) to use this feature. One of the possible downsides is that task mempolicy is limited by cpuset constraints. V4 add a subset of the hugepages sysfs attributes to each per node system device directory under: /sys/devices/node/node[0-9]*/hugepages. The per node attibutes allow direct assignment of a huge page count on a specific node, regardless of the task's mempolicy or cpuset constraints. Note, I haven't implemented a boot time parameter to constrain the boot time allocation of huge pages. This can be added if anyone feels strongly that it is required. -- To unsubscribe from this list: send the line "unsubscribe linux-numa" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
