How To Monitor System Utilization

CPU

Infos can be found ​here and ​here (with examples how to parse output with sed and awk).

Here are some commands/methods:

• top -bn 1
• iostat -c
• dstat -c
• mpstat #from sysstat package
• sar -u 2 1 #average over 2 seconds, for 1 time
• cat /proc/stat
• ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10

Memory

• top -bn 1
• dstat -m
• cat /proc/meminfo

GPU

• nvidia_smi -l 1 #loop every 1 second
• nvidia_smi -q -d UTILIZATION -l 1 --id=0000:02:00 #just show GPU on a specific PCI bus

Network

• cat /proc/net/dev
• ifstat
• dstat -n
• netstat -a

Disk I/O

• iostat -d
• dstat -d