RedHat EX442 - Red Hat Certified Specialist in Linux Performance Tuning exam

RedHat EX442 Actual PDF
  • Exam Code: EX442
  • Exam Name: Red Hat Certified Specialist in Linux Performance Tuning exam
  • Updated: Aug 22, 2026
  • Q & A: 0 Questions and Answers

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RedHat EX442 Exam Syllabus Topics:

SectionObjectives
CPU and Process Management- Use control groups (cgroups) and systemd resource limits
- Apply tuned profiles for workload types
- Configure CPU affinity and scheduling policies
Storage and I/O Tuning- Select and configure I/O schedulers
- Optimize disk layout, swap placement, and filesystem settings
- Tune block device and filesystem performance
Network Performance Tuning- Optimize interface settings and traffic flow
- Adjust network stack parameters
Memory Optimization- Configure large pages and alternative page sizes
- Tune caching and virtual memory settings
- Optimize swap usage and memory allocation
Kernel and Runtime Tuning- Modify kernel parameters via /proc/sys, sysctl, /sys
- Manage process priorities and scheduling
- Adjust kernel module parameters
System Performance Analysis Tools- Analyze system behavior with Performance Co-Pilot (PCP)
- Profile hardware configuration via dmesg, dmidecode, sosreport
- Use standard monitoring utilities (vmstat, iostat, mpstat, sar, top, powertop)
- Diagnose with eBPF tools, SystemTap, strace, Valgrind

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