Yang Shi <shy828301@xxxxxxxxx> writes: > On Mon, Sep 13, 2021 at 6:37 PM Huang Ying <ying.huang@xxxxxxxxx> wrote: >> >> To distinguish the number of the memory tiering promoted pages from >> that of the originally inter-socket NUMA balancing migrated pages. >> The counter is per-node (count in the target node). So this can be >> used to identify promotion imbalance among the NUMA nodes. > > I'd like this patch be the very first one in the series. Since we need > such counters regardless of all the optimizations. And actually I > think this patch could go with the merged "migration in lieu of > discard" patchset. Yes. This sounds reasonable. I will change this in the next version. Best Regards, Huang, Ying