RHEL 10 – tuned profile changes are ignored after kernel update – Fix & Prevention

📖 ~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

CPU and IO behavior regresses because expected tuning profile is not active post-update.

Environment & Reproduction

Profile drift occurs after kernel changes or unattended package updates.

tuned-adm active
uname -r

Root Cause Analysis

tuned daemon starts with default profile due to stale state or missing custom profile files.

Quick Triage

Check tuned service status, profile selection, and related logs.

systemctl status tuned
tuned-adm list
journalctl -u tuned -n 80 --no-pager
getenforce
firewall-cmd --state

Step-by-Step Diagnosis

Inspect custom profile paths and startup ordering.

ls -l /etc/tuned
grep -R . /etc/tuned/* -n | head -n 120
systemctl cat tuned

Solution – Primary Fix

Reapply required profile and enable tuned persistence at boot.

sudo tuned-adm profile throughput-performance
sudo systemctl enable --now tuned
sudo systemctl restart tuned

Solution – Alternative Approaches

Package custom profile into configuration management to prevent local drift.

sudo cp -a /root/backup/custom-profile /etc/tuned/
sudo tuned-adm profile custom-profile

Verification & Acceptance Criteria

Active profile remains correct after reboot and performance counters normalize.

tuned-adm active
systemctl reboot

Rollback Plan

Revert to previously approved profile if new settings cause instability.

sudo tuned-adm profile balanced
sudo systemctl restart tuned

Prevention & Hardening

Audit tuned profile at startup and after kernel package transactions.

dnf history info last | head -n 80

Related Errors & Cross-Refs

Related to cpupower governor resets and BIOS power profile overrides.

Related tutorial: View the step-by-step tutorial for rhel-10.

View all rhel-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

tuned profile management and RHEL performance tuning documentation.