在 2020/8/28 上午9:40, Daniel Jordan 写道: > I went back to your v1 post to see what motivated you originally, and you had > some results from aim9 but nothing about where this reared its head in the > first place. How did you discover the bottleneck? I'm just curious about how > lru_lock hurts in practice. We have gotten very high 'sys' in some buiness/machines. And found much of time spent on the lru_lock and/or zone lock. Seems per memcg lru_lock could help this, but still no idea on zone lock. Thanks Alex