Podman : Display Container resource usage

	You can check percentage of CPU, memory, network I/O for Containers.
[1]	Check the resource usage of each container.

# display usage statistics with streaming root@dlp:~#  podman stats ID NAME CPU % MEM USAGE / LIMIT MEM % NET IO BLOCK IO PIDS CPU TIME AVG CPU % 950a9f5d29cc 681ed54263c1-service 0.01% 45.06kB / 16.77GB 0.00% 0B / 0B 0B / 0B 1 2.376ms 0.01% 1a4ddb381dc2 a7ce5bf1ec2f-infra 0.01% 49.15kB / 16.77GB 0.00% 1.57kB / 768B 0B / 0B 1 2.338ms 0.01% 32cf105b8d2c nginx-pod-pod-nginx-pod 0.03% 5.407MB / 16.77GB 0.03% 1.57kB / 768B 0B / 0B 9 10.752ms 0.03% 9e7eeada052a objective_bell 0.18% 2.765MB / 16.77GB 0.02% 1.5kB / 628B 0B / 8.192kB 56 25.002ms 0.18% # display without streaming root@dlp:~#  podman stats --no-stream ID NAME CPU % MEM USAGE / LIMIT MEM % NET IO BLOCK IO PIDS CPU TIME AVG CPU % 950a9f5d29cc 681ed54263c1-service 0.00% 45.06kB / 16.77GB 0.00% 0B / 0B 0B / 0B 1 2.376ms 0.00% 1a4ddb381dc2 a7ce5bf1ec2f-infra 0.00% 49.15kB / 16.77GB 0.00% 1.64kB / 768B 0B / 0B 1 2.338ms 0.00% 32cf105b8d2c nginx-pod-pod-nginx-pod 0.02% 5.407MB / 16.77GB 0.03% 1.64kB / 768B 0B / 0B 9 10.752ms 0.02% 9e7eeada052a objective_bell 0.09% 2.765MB / 16.77GB 0.02% 1.57kB / 698B 0B / 8.192kB 56 25.282ms 0.09% # display for a specific container root@dlp:~#  podman stats 32cf105b8d2c --no-stream ID NAME CPU % MEM USAGE / LIMIT MEM % NET IO BLOCK IO PIDS CPU TIME AVG CPU % 32cf105b8d2c nginx-pod-pod-nginx-pod 0.02% 5.407MB / 16.77GB 0.03% 1.78kB / 838B 0B / 0B 9 10.752ms 0.02% # specify time interval for streaming display (sec) # * default --interval is 5 sec root@dlp:~#  podman stats 950a9f5d29cc --interval 10 ID NAME CPU % MEM USAGE / LIMIT MEM % NET IO BLOCK IO PIDS CPU TIME AVG CPU % 950a9f5d29cc 681ed54263c1-service 0.00% 45.06kB / 16.77GB 0.00% 0B / 0B 0B / 0B 1 2.376ms 0.00% # display with specific format root@dlp:~#  podman stats --no-stream --format "table {{.ID}} {{.CPUPerc}} {{.MemPerc}}" ID CPU % MEM % 950a9f5d29cc 0.00% 0.00% 1a4ddb381dc2 0.00% 0.00% 32cf105b8d2c 0.01% 0.03% 9e7eeada052a 0.02% 0.02%