Re: [PATCH -mm v9 0/8] idle memory tracking

On Wed, Jul 29, 2015 at 7:45 AM, Vladimir Davydov [off-list ref]
wrote:

Page table scan approach has the inherent problem - it ignores unmapped
page cache. If a workload does a lot of read/write or map-access-unmap
operations, we won't be able to even roughly estimate its wss.

You can catch that in mark_page_accessed on those paths, though.

-- 
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.