[Pmem] Re: [PMEM PATCH 0/3] memory tiered: adjust promotion threshold to

Mysql benchmark will produce too mnay promotion due to DRAM node is not enough, but promotion frequently will result in performance decrease. hence, we perfer to remote access rather than demote/promote traffic frequently.

Huang Ying (3): mm, migrate: use flags parameter for remove_migration_ptes() memory tiering: measure whether demoted pages are hot memory tiering: adjust promotion threshold based on hot pages demoted include/linux/mmzone.h | 3 ++ include/linux/page-flags.h | 9 ++++++ include/linux/page_ext.h | 3 ++ include/linux/rmap.h | 8 ++++- include/linux/sched/numa_balancing.h | 62 ++++++++++++++++++++++++++++++++++++ include/linux/sched/sysctl.h | 3 ++ include/trace/events/mmflags.h | 8 ++++- kernel/sched/fair.c | 27 +++++++++++++--- kernel/sysctl.c | 16 ++++++++++ mm/huge_memory.c | 6 ++-- mm/mempolicy.c | 2 ++ mm/migrate.c | 60 ++++++++++++++++++++++++++++------ mm/vmstat.c | 1 + 13 files changed, 189 insertions(+), 19 deletions(-)