Re: [linus:master] [mm] 01b9da291c: stress-ng.switch.ops_per_sec 67.7% regression

[Shakeel Butt]

On Tue, May 12, 2026 at 08:56:52PM +0800, kernel test robot wrote:
> 
> 
> Hello,
> 
> kernel test robot noticed a 67.7% regression of stress-ng.switch.ops_per_sec on:
> 
> 
> commit: 01b9da291c4969354807b52956f4aae1f41b4924 ("mm: memcontrol: convert objcg to be per-memcg per-node type")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

This is most probably due to shuffling of struct mem_cgroup and struct
mem_cgroup_per_node members.

I will try to reproduce and will followup on this.