Performance Monitoring Option

Under normal operation, data is automatically collected (from system startup time) into daily summary reports and data may be independently analyzed for each day under user control and may be summarized and displayed to the screen or printed.

Performance data summaries can be kept on-line for months allowing for the easy comparison of system performance from different time periods, or can be archived to tape for retrieval and analysis at a later time. Ad hoc monitoring and reporting is also supported providing live system monitoring and the generation of short-term reports.

The information that is recorded, reported, and, analyzed by the System Performance Monitoring option includes:

• Processes(in run queue, blocked or swapped out),
• Memory Usage (used, free),
• Paging Activity (pages in, out),
• Swap Space Usage,
• Disk I/O (number of operations),
• Faults (interrupts, system calls, context switches),
• CPU usage (user, system, idle time),
• System Tables (files, inodes, processes, texts),
• User Logins, and,
• Load Average.