Numa

Commands

  • Show inventory of available nodes on the system: numactl --hardware
  • Check the zone reclaim mode: cat /proc/sys/vm/zone_reclaim_mode
  • Displays per-node NUMA hit and miss system statistics from the kernel memory allocator.: numastat
  • Display the zones: cat /proc/zoneinfo | grep zone
  • Display details for each zone: grep -A6 Node /proc/zoneinfo
  • Show free pages from each zone (some with free -m, just free without cache): grep 'pages free' /proc/zoneinfo