Analyze system performance using dstat to monitor multiple resources at once. How would you use it during a performance issue?
Use Performance Co-Pilot (PCP) to monitor real-time metrics. How do you install, configure, and use pmstat?
Use pmlogger and pmrep to collect and analyze historical performance data with PCP.
You suspect a hardware failure. Use dmesg to check for kernel messages related to hardware. What steps would you follow?
How can dmidecode be used to profile hardware configuration such as memory and CPU? Provide steps.
You suspect CPU resource contention on a RHEL 9 system. Use vmstat to monitor CPU usage and interpret the output to determine if the system is CPU-bound.
