04.04.2014, 08:43, "Abu Rasheda" <rcpilot2010@xxxxxxxxx>: > Is it NUMA system ? This happens when node tries to access memory connected to other CPU. Yes, that's NUMA system. Of course inter-node traffic is involved. What is strange is that CPU usage pattern looks like this: http://software.intel.com/sites/default/files/managed/1b/57/oimg.png Despite the same test traffic pattern. -- wbr, Oleg. "Anarchy is about taking complete responsibility for yourself." Alan Moore. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies