Hotcold

• At low write probabilty, low page locality :
  OS < (PS, PS-OO, PS-OA, PS-AA)
  due to message cost.
• At high write probability, low page locality :
  OS, PS-OO < PS < PS-OA < PS-AA
  • OS, PS-OO : Due to message cost.
  • PS : Contention due to false sharing.
  • PS-OA : Object locking overheads.
• At high page locality : PS does the best. PS-AA performs close.