Re: [PATCH] sched/fair: allow imbalance between LLCs under NUMA

[K Prateek Nayak]

Hello Jianyong,

On 6/19/2025 11:38 AM, Jianyong Wu wrote:
> If this change has bad effect for performance, is there any suggestion
> to mitigate the iperf migration issue?

How big of a performance difference are you seeing? I still don't see
any numbers from your testing on the thread.

> Or just leave it there?
 
Ideally, the cache-aware load balancing series [1] should be able to
address these concerns. I suggest testing iperf with those changes and
checking if that solves the issues of excessive migration.

[1] https://lore.kernel.org/lkml/cover.1750268218.git.tim.c.chen@xxxxxxxxxxxxxxx/

--
Thanks and Regards,
Prateek