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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| Section | Objectives |
|---|---|
| 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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