IBM RS/6000 supplies the following tools for monitoring performance:
The iostat command reports the amount of I/O on terminals and hard disks and how CPU time is spent.
The vmstat command monitors virtual memory usage.
The netstat command monitors network status.
netstart -v displays Transmit/Receive Statistics. It is also used to determine if enough mbufs have been configured for network traffic.
no -a command displays current network options. It is also used for tuning mbuf pools.
The ps command provides a snapshot of accumulated CPU time and usage for individual processes.
The time command determines the various user, system, and real-time resources during a complete run.
For details about these tools, see your operating system documentation.