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SubjectRe: [PATCH V2 0/6] VA to numa node information
On 09/14/2018 11:04 AM, Prakash Sangappa wrote:
> Also, for valid VMAs in 'maps' file, if the VMA is sparsely
> populated with physical pages, the page walk can skip over non
> existing page table entires (PMDs) and so can be faster.
Note that this only works for things that were _never_ populated. They
might be sparse after once being populated and then being reclaimed or
discarded. Those will still have all the page tables allocated.

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