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SubjectRe: [PATCH v5 5/5] mm: page_alloc: reduce unnecessary binary search in early_pfn_valid()

On 4/2/2018 3:00 PM, Ard Biesheuvel Wrote:
> How much does it improve the performance? And in which cases?
> I guess it improves boot time on systems with physical address spaces
> that are sparsely populated with DRAM, but you really have to quantify
> this if you want other people to care.
Yes, I write the performance in patch 0/5. I will write it in the patch
description later.


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