quoted

quoted

Mapping that to actual THP sizes (#pages in a thp) on an arch will be easy.

And at different mTHP levels too right?

Another point here, since we have to keep:

/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_none

Around, and users will try to set values there, presumably we will now add:

/sys/kernel/mm/transparent_hugepage/khugepaged/eagerness

How will we map <-> the two tunables?

Well, the easy case if someone updates eagerness, then we simply et it 
to whatever magic value we compute and document.

The other direction is more problematic, likely we'll simply warn and do 
something reasonable (map it to whatever eagerness scale is closest or 
simply indicate it as "-1" -- user intervened or sth like that)

-- 
Cheers

David / dhildenb