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RedHat EX442 Exam Syllabus Topics:

SectionObjectives
System Performance Analysis- System resource monitoring and bottleneck identification
  • 1. Memory usage and swap behavior analysis
    • 2. CPU utilization analysis using standard Linux tools
      - Performance baseline establishment
      • 1. Using historical metrics to identify degradation
        • 2. Interpreting system load averages
          System Profiling and Kernel Tuning- Kernel parameter tuning
          • 1. sysctl configuration
            • 2. cgroups resource management
              - Performance profiling tools
              • 1. perf and sar usage
                • 2. Tracing system calls
                  CPU and Process Tuning- CPU performance optimization
                  • 1. Identifying CPU-bound processes
                    • 2. Load balancing across cores
                      - Process scheduling and prioritization
                      • 1. nice and renice usage
                        • 2. CPU affinity and taskset configuration
                          Network Performance Tuning- Network troubleshooting tools
                          • 1. ss, netstat, and ip tools usage
                            • 2. Packet analysis basics
                              - Network throughput optimization
                              • 1. TCP tuning parameters
                                • 2. Bandwidth and latency analysis
                                  Disk I/O Performance- Storage performance analysis
                                  • 1. Identifying I/O bottlenecks
                                    • 2. iostat and iotop usage
                                      - Filesystem tuning
                                      • 1. Disk scheduler configuration
                                        • 2. Mount options optimization
                                          Memory Management- Memory leak detection
                                          • 1. OOM killer behavior analysis
                                            • 2. Process memory profiling
                                              - Virtual memory tuning
                                              • 1. Swap usage optimization
                                                • 2. Kernel memory parameters tuning

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