Re: [RFC][PATCH 0/5] hugetlb NUMA improvements

[Nishanth Aravamudan <nacc@us.ibm.com>]

On 06.08.2007 [09:32:54 -0700], Nishanth Aravamudan wrote:
> The following stack of 5 patches give hugetlbfs improved NUMA support.
> 
> 1/5: Fix hugetlb pool allocation with empty nodes V9
> 	The most important of the patches, fix hugetlb pool allocation
> 	in the presence of memoryless nodes.
> 
> 2/5: hugetlb: numafy several functions
> 3/5: hugetlb: add per-node nr_hugepages sysfs attribute
> 	Together, add a per-node sysfs attribute for the number of
> 	hugepages allocated on the node.  This gives system
> 	administrators more fine-grained control of the global pool's
> 	distribution.
> 
> 4/5: hugetlb: fix cpuset-constrained pool resizing
> 	fix cpuset-constrained resizing in the presence of the previous
> 	3 patches.
> 
> 5/5: hugetlb: interleave dequeueing of huge pages
> 	add interleaving to the dequeue path for hugetlb, so that
> 	hugepages are removed from all available nodes when the pool
> 	shrinks. Given the sysfs attribute the current node-at-a-time
> 	dequeueing is still possible.

I forgot to mention that this stack depends on Christoph's set of
memoryless nodes patches. In particular the node_states nodemask array
and the fix for GFP_THISNODE allocations.

Thanks,
Nish

-- 
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center

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