//NUMA关闭前
[root@hellodba ~]# dmesg | grep -i numa
[    0.000000] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff]
[    0.000000] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x43fffffff] -> [mem 0x00000000-0x43fffffff]

//MUMA关闭后
[root@hellodba ~]# dmesg | grep -i numa
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-957.el7.x86_64 root=UUID=22013bb0-679e-4f14-9797-92f3d0948444 ro crashkernel=auto rhgb quiet numa=off
[    0.000000] NUMA turned off
[    0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-957.el7.x86_64 root=UUID=22013bb0-679e-4f14-9797-92f3d0948444 ro crashkernel=auto rhgb quiet numa=off