Messages in this thread | | | Subject | Re: [PATCH V2 0/6] VA to numa node information | From | Dave Hansen <> | Date | Fri, 14 Sep 2018 12:01:10 -0700 |
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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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