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SubjectRe: [RFC PATCH v2 2/4] mm/__free_one_page: skip merge for order-0 page unless compaction failed
On Tue, Mar 20, 2018 at 09:21:33PM -0700, Figo.zhang wrote:
> suppose that in free_one_page() will try to merge to high order anytime ,
> but now in your patch,
> those merge has postponed when system in low memory status, it is very easy
> let system trigger
> low memory state and get poor performance.

Merge or not merge, the size of free memory is not affected.

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