Re: [PATCH v2 0/1] mm: introduce MADV_DEMOTE/MADV_PROMOTE

[David Hildenbrand]

> > 4. MADV_DEMOTE and MADV_PROMOTE provide a better balance between capacity
> >      and latency. They allow hot pages that need promoting to be promoted
> >      smoothly and pages that need demoting to be demoted immediately. This
> >      helps tiered memory systems to operate more rationally.
>
> Can you summarize why something similar could not be provided by a
> library that builds up on existing functionality, such as migrate_pages?

Sorry, I actually wanted to refer to "move_pages", not "migrate_pages".

--
Cheers,

David / dhildenb