Re: [RFC PATCH] Introducing lockless cache built on top of slab allocator

[Matthew Wilcox]

On Sun, Sep 19, 2021 at 04:42:39PM +0000, Hyeonggon Yoo wrote:
> It is just simple proof of concept, and not ready for submission yet.
> There can be wrong code (like wrong gfp flags, or wrong error handling,
> etc) it is just simple proof of concept. I want comment from you.

Have you read:

https://www.usenix.org/legacy/event/usenix01/full_papers/bonwick/bonwick_html/

The relevant part of that paper is section 3, magazines.  We should have
low and high water marks for number of objects, and we should allocate
from / free to the slab allocator in batches.  Slab has bulk alloc/free
APIs already.

I'd rather see this be part of the slab allocator than a separate API.