🟢 Low   ⏱ 5–30 min  Last verified: 20 May 2026
Affected versions: RHEL 10.0 RHEL 10.1

📖 ~1 min read

Table of contents
  1. Problem Summary
  2. Symptoms
  3. Diagnostics
  4. Root Cause
  5. Primary Fix
  6. Verification
  7. Prevention
  8. Rollback
  9. Automation
  10. Command Reference
  11. Escalation
  12. Related Notes

Problem Summary

Selected tuned profile is shown but kernel parameters remain unchanged.

Symptoms

tuned-adm active reports profile, yet sysctl values do not match.

Diagnostics

Check tuned service status and inspect profile inheritance.

Root Cause

Conflicting manual sysctl config overrides tuned plugin behavior.

Primary Fix

Remove conflicting entries and restart tuned for profile reapply.

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Illustrative mockup for rhel-10 — rhel10-b02-p45-1
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Verification

Validate with tuned-adm verify and sysctl -a targeted keys.

Illustrative mockup for rhel-10 — rhel10-b02-p45-2
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Prevention

Document ownership boundaries between tuned and custom sysctl files.

Rollback

Switch back to balanced profile if workload degrades.

Automation

Deploy profile and sysctl controls from one source of truth.

Command Reference

tuned-adm profile throughput-performance; systemctl restart tuned

Escalation

Attach tuned logs and custom profile fragments.

Some changes only become effective after reboot.

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.

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