Quick answer: Performance starts with measuring first (CPU, RAM, disk I/O, slow queries), then caching (Redis/CDN) and right-sizing.
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Frequently asked questions (FAQ)
How do I optimize my Minecraft server for better performance?
1. Java options: -Xmx8G -Xms8G (8GB RAM), 2. Paper/Spigot instead of Vanilla, 3. set render-distance to 8-10, 4. set Nether/End borders, 5. use chunk preloader, 6. view-distance limiting. Result: 90 achievable.
What are top performance tips for Linux servers?
1. set swappiness=10 (less swap use), 2. increase ulimits, 3. TCP tuning (TCP buffer), 4. SSD instead of HDD, 5. monitoring (Netdata), 6. move cron jobs to off-peak, 7. disable unused services.
How do I use SSD correctly for maximum performance?
1. enable TRIM (fstrim -v /), 2. noatime mount option, 3. set I/O scheduler to noop, 4. avoid swap on SSD. With SSD: 10-100x faster than HDD. For game servers: difference between lagging/no lag.
CPU or RAM is limiting my server – what should I upgrade?
Test: top/htop – shows CPU%. RAM usage >80% = upgrade RAM. CPU >80% = upgrade CPU/cores. For game servers: usually RAM limit. For traffic-heavy sites: CPU more important. Measure with 'sar -u' over time.
How do I set up monitoring & alerts for performance?
Tools: Netdata (free, live), Prometheus + Grafana (advanced), Nagios (enterprise). Alerts: CPU >80%, RAM >80%, disk >90%, load >cores*2. Notifications: email, Slack, or webhook.
Do firewalls like UFW cause performance loss?
Minimal (
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