On Tue, Feb 25, 2025 at 09:59:33PM +0800, Chen Yu wrote: > This per-cgroup NUMA balancing control was once proposed in > 2019 by Yun Wang[1]. Then, in 2024, Kaiyang Zhao mentioned > that he was working with Meta on per-cgroup NUMA control[2] > during a discussion with David Rientjes. > > I could not find further discussion regarding per-cgroup NUMA > balancing from that point on. This set of RFC patches is a > rough and compile-passed version, and may have unhandled cases > (for example, THP). It has not been thoroughly tested and is > intended to initiate or resume the discussion on the topic of > per-cgroup NUMA load balancing. Hello Chen, It's nice to see people interested in this. I posted a set of RFC patches later[1] that focuses on the fairness issue in memory tiering. It mostly concerns the demotion side of things, and the promotion / NUMA balancing side of things was left out of the patch set. I don't work for Meta now, but my understanding is that they'll attempt to push through a solution for per-cgroup control of memory tiering that is in the same vein as my RFC patches, and it may include controls for per-group NUMA balancing in the context of tiered memory. Best, Kaiyang [1] https://lore.kernel.org/linux-mm/20240920221202.1734227-1-kaiyang2@xxxxxxxxxx/
