Re: [RFC PATCH 5/5] mm/damon/paddr: add time budget to migration page walk

From: SeongJae Park

Date: Sun May 17 2026 - 19:44:57 EST


On Sat, 16 May 2026 14:03:57 -0700 Ravi Jonnalagadda <ravis.opensrc@xxxxxxxxx> wrote:

> On populated physical address ranges the pageblock skip optimization
> alone is insufficient — most pageblocks contain at least one allocated
> page, so the walk still iterates millions of PFNs.

So my questions to the fourth patch of this series are also applied here,
especially about the assumption of systems having most memory free. I will
hold digging deep here until the high level discussion is completed.


Thanks,
SJ

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