On Wed 17-04-19 13:43:44, Yang Shi wrote: [...] > And, I'm wondering whether this optimization is also suitable to general > NUMA balancing or not. If there are convincing numbers then this should be a preferable way to deal with it. Please note that the number of promotions is not the only metric to watch. The overal performance/access latency would be another one. -- Michal Hocko SUSE Labs