Re: [PATCH] mm/slub: Detach node lock from counting free objects

[Christopher Lameter]

On Sat, 8 Feb 2020, Wen Yang wrote:

> I would greatly appreciate it if you kindly give me some feedback on this
> patch.

I think the measure is too severe given its use and the general impact on code.

Maybe avoid taking the lock or reducing the time a lock is taken when reading /proc/slabinfo is
the best approach?

Also you could cache the value in the userspace application? Why is this
value read continually?