Re: [RFC PATCH] mm: migrate: Add new node demotion strategy

[Dave Hansen]

On 11/4/21 2:13 AM, Baolin Wang wrote:
> +What:		/sys/kernel/mm/numa/demotion_mode
> +Date:		November 2021
> +Contact:	Linux memory management mailing list <linux-mm@xxxxxxxxx>
> +Description:	Set the demotion mode when enabling demoting pages during reclaim

I don't think we need a tunable for this.  The existing behavior is just
stupid for your hardware and can be replaced.  Let's also try to do it
with the existing node_demotion[] data structure before we go adding more.