On 2025/7/25 9:08, Tejun Heo wrote: > On Wed, Jul 23, 2025 at 09:28:02AM +0800, Chen Ridong wrote: >>> But beware that the possibility of having cpu.stat without enabling the >>> cpu controller on v2 is a user visible behavior and I'm quite sure some >>> userspace relies on it, so you'd need to preserve that. >> >> This is what I worry about. Thank you for your confirmation. > > Yeah, this was an intentional decision - sacrificing a bit of code org > cleanliness for everyday usefulness. Enabling CPU controller can have > substantial overhead and having cpu stats available by default doesn't cost > much while improving usefulness. > > Thanks. > Thank you Tj, This is clear now. Best regards, Ridong
