怎么在 Linux 上查看多核负载？
# top # 之后按下数字 1 . 则显示多个CPU top - 18:05:48 up 1 day, 2:05, 1 user, load average: 0.00, 0.00, 0.00 Tasks: 174 total, 1 running, 173 sleeping, 0 stopped, 0 zombie Cpu0 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu1 : 0.5%us, 0.5%sy, 0.0%ni, 98.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu2 : 0.0%us, 0.5%sy, 0.0%ni, 99.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu6 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 5984824k total, 611628k used, 5373196k free, 26552k buffers Swap: 6291448k total, 0k used, 6291448k free, 400584k cached
查看某些或者某个进程的状态？
1、得到 httpd 进程的PID # pidof httpd 21358 2、通过top指定查看特定的PID # top -p 21358 # top -p PID,PID,PID ...
查看硬盘UUID？
## 方法一 # blkid ## 方法二 # ls -l /dev/disk/by-uuid
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