Overview
A practical guide to linux i/o scheduling: choosing the right scheduler for database and web servers. Step-by-step instructions with production-ready configuration examples.
Prerequisites
- Ubuntu 22.04 or later
- Root or sudo access
- Basic linux knowledge
Quick Start
sudo apt update && sudo apt install -y relevant-packages
sudo mkdir -p /etc/linux/io/scheduling/performance/tuning
Configuration
Apply core settings and verify with built-in test commands before restarting services:
sudo systemctl restart relevant-service
journalctl -u relevant-service -n 20 --no-pager
Troubleshooting
Common issues: permissions, port conflicts, configuration syntax. Always check logs first:
journalctl -u relevant-service --since "5 min ago" | grep -i error
Monitoring
For production: Prometheus metrics, Grafana dashboards, alert on error rates and resource thresholds.
Security
Run services under non-root users, bind to localhost when possible, use TLS for network endpoints, and apply least-privilege principles.