Performance Analysis

List of useful command to performance analysis:

• uptime - system uptime and load averages
• dmesg | tail - kernel errors
• vmstat 1 - overall stats by time
• mpstat -P ALL 1 - CPU balance
• pidstat 1 - process usage
• iostat -xz 1 - disk I/O
• free -m - memory usage
• sar -n DEV 1 - network I/O
• sar -n TCP,ETCP 1 - TCP stats
• htop - check overview