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2.6. Additional Resources

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This section includes various resources that can be used to learn more about resource monitoring and the Red Hat Enterprise Linux-specific subject matter discussed in this chapter.

2.6.1. Installed Documentation

The following resources are installed in the course of a typical Red Hat Enterprise Linux installation.
  • free(1) man page -- Learn how to display free and used memory statistics.
  • top(1) man page -- Learn how to display CPU utilization and process-level statistics.
  • watch(1) man page -- Learn how to periodically execute a user-specified program, displaying fullscreen output.
  • GNOME System MonitorHelp menu entry -- Learn how to graphically display process, CPU, memory, and disk space utilization statistics.
  • vmstat(8) man page -- Learn how to display a concise overview of process, memory, swap, I/O, system, and CPU utilization.
  • iostat(1) man page -- Learn how to display CPU and I/O statistics.
  • mpstat(1) man page -- Learn how to display individual CPU statistics on multiprocessor systems.
  • sadc(8) man page -- Learn how to collects system utilization data.
  • sa1(8) man page -- Learn about a script that runs sadc periodically.
  • sar(1) man page -- Learn how to produce system resource utilization reports.
  • sa2(8) man page -- Learn how to produce daily system resource utilization report files.
  • nice(1) man page -- Learn how to change process scheduling priority.
  • oprofile(1) man page -- Learn how to profile system performance.
  • op_visualise(1) man page -- Learn how to graphically display OProfile data.
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