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SubjectRe: [PATCH 0/4] mm: Simplfy cow handling
On Fri, Aug 21, 2020 at 4:50 PM Peter Xu <> wrote:
> - Run a busy loop dirty program [1] that uses 6G of memory, restrict to 1G
> RAM + 5G swap (cgroup). A few hours later, all things still look good.
> Make sure to observe (still massive) correct page reuses using the new
> counter using the last patch, probably when swapping in.
> - Run umapsort [2] to make sure uffd-wp will work again after applying this
> series upon master 5.9-rc1 (5.9-rc1 is broken).

I obviously like the diffstat, am wondering if you saw any throughput
changes or similar for the busy-loop dirtying thing?


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