NUMA commands

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numactl --hardware available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23 node 0 size: 131045 MB node 0 free: 34018 MB node 1 cpus: 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31 node 1 size: 131072 MB node 1 free: 15748 MB node distances: node 0 1 0: 10 11 1: 11 10 [root@islpfdkvm12 ~]# free -mt total used free shared buffers cached Mem: 258451 208978 49472 0 309 141901 -/+ buffers/cache: 66768 191682 Swap: 9999 458 9541 Total: 268451 209436 59014 [root@islpfdkvm12 ~]# numastat node0 node1 numa_hit 155199455 157169588 numa_miss 18363861 35640093 numa_foreign 35640093 18363861 interleave_hit 57466 57452 local_node 155198395 157104460 other_node 18364921 35705221 [root@islpfdkvm12 ~]# numad Looks like transparent hugepage scan time in /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/scan_sleep_millisecs is 10000 ms. Consider increasing the frequency of THP scanning, by echoing a smaller number (e.g. 100) to /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/scan_sleep_millisecs to more aggressively (re)construct THPs. For example: # echo 100 > /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/scan_sleep_millisecs

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