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

EX442 real exams

Exam Code: EX442

Exam Name: Red Hat Certified Specialist in Linux Performance Tuning exam

Updated: Sep 09, 2026

Q & A: 0 Questions and Answers

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RedHat EX442 Exam Syllabus Topics:

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

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