查看 linux swap 使用狀況

Mem:  16427616k total, 16374588k used,    53028k free,      872k buffers
top - 16:48:42 up 153 days,  6:12,  3 users,  load average: 1.90, 2.02, 2.04
Tasks: 1210 total,   2 running, 1208 sleeping,   0 stopped,   0 zombie
Cpu(s): 12.5%us,  1.2%sy,  0.0%ni, 85.9%id,  0.0%wa,  0.1%hi,  0.2%si,  0.0%st
Mem:  16427616k total, 16371592k used,    56024k free,      524k buffers
Swap: 16779884k total,      208k used, 16779676k free, 15398336k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                       
29369 root      25   0 94600 7904 2632 R 98.5  0.0 118:27.17 sshd     

一般而言用 top 指令. 預設是看不到 swap. 所以要額外按一些按鈕. 進去 top 然後按 O 再按 p 最後按 enter 就可以看到 swap

top - 16:50:29 up 153 days,  6:14,  3 users,  load average: 1.80, 1.94, 2.00
Tasks: 1210 total,   3 running, 1207 sleeping,   0 stopped,   0 zombie
Cpu(s): 11.6%us,  2.1%sy,  0.0%ni, 85.8%id,  0.0%wa,  0.0%hi,  0.5%si,  0.0%st
Mem:  16427616k total, 16189080k used,   238536k free,      692k buffers
Swap: 16779884k total,      208k used, 16779676k free, 15218204k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  SWAP COMMAND                  
 8898 root      18   0  151m 6724  972 S  0.0  0.0   0:00.01 144m hpssd.py