CentOS Stream 9 – Common Problem 116 – Diagnosis and Fix

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

System runs hot or sluggish under load despite tuned being installed.

Environment & Reproduction

Default tuned profile is ‘balanced’ or ‘virtual-guest’ instead of the workload profile.

Root Cause Analysis

Cloud images may force a profile that conflicts with bare-metal expectations.

Quick Triage

tuned-adm active and tuned-adm recommend show current/recommended.

Step-by-Step Diagnosis

Check /etc/tuned/active_profile and journalctl -u tuned.

Solution – Primary Fix

tuned-adm profile throughput-performance (or workload-specific).

Solution – Alternative Approaches

Build a custom profile under /etc/tuned//tuned.conf.

Verification & Acceptance Criteria

tuned-adm active reflects the new profile and metrics improve.

Rollback Plan

tuned-adm profile .

Prevention & Hardening

Bake the profile choice into Kickstart and validate with stress-ng.

Related Errors & Cross-Refs

Related: cpupower governor and irqbalance interactions.

Related tutorial: View the step-by-step tutorial for centos-stream-9.

View all centos-stream-9 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

tuned project docs and Red Hat performance tuning guide.