Re: [RFC PATCH 0/7] Reviving the slab destructor to tackle the percpu allocator scalability problem

Tejun Heo
2025-04-25T19:03:51Z

On Fri, Apr 25, 2025 at 07:10:03PM +0900, Harry Yoo wrote:
> > I don't exactly know what that should look like but maybe a
> > simplified version of sl*b serving power of two sizes should do or maybe it
> > needs to be smaller and more adaptive. We'd need to collect some data to
> > decide which way to go.
>
> I'm not sure what kind of data we need — maybe allocation size distributions,
> or more profiling data on workloads that contend on percpu allocator's locks?

Oh yeah, mostly distributions of memory allocation sizes across different
systems and workloads.

Thanks.

--
tejun