Re: [PATCH] memblock, numa: Binary search node id

[Yinghai Lu]

On Thu, Aug 15, 2013 at 1:43 PM, Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, 14 Aug 2013 22:46:29 -0700 Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>
>> Current early_pfn_to_nid() on arch that support memblock go
>> over memblock.memory one by one, so will take too many try
>> near the end.
>>
>> We can use existing memblock_search to find the node id for
>> given pfn, that could save some time on bigger system that
>> have many entries memblock.memory array.
>
> Looks nice.  I wonder how much difference it makes.

Russ said he would test on his 256 nodes system, but looks he never
got chance.

Thanks

Yinghai
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