Linux bandwidth, CPU, memory usage

Iftop Viewing bandwidth usage (total)
Yum install-y iftop Installation Iftop
Nethogs Viewing process traffic

Curl http://218.5.73.233:8060/ip.php View Egress IP

To view the current thread:
Ps-ef|grep Java
Ps-ef|gerp Com.meiya.main (package name)

1, the CPU utilization situation
Command: Top

Remark: User occupies cpu1.5%, system occupies cpu1.5%, idle 95.3%, other occupies 1.7%;
2, Memory utilization situation
Command: Free-g

Note: Total memory size 15G, using 2G, free 13G;
3. Bandwidth utilization Rate
Command: Nethogs

Note: Java threads occupy current bandwidth: 1.812+0.629=2.441

Linux bandwidth, CPU, memory usage