Stressmark
Real-time server performance grading and stress testing for Minecraft servers. Spawn fake players, monitor key metrics, and discover exactly how many players your hardware can handle.
Stressmark
Know your server's true limits.
Stressmark is a server-side mod that helps you understand exactly what your Minecraft server can handle. Whether you're preparing for a big event, choosing hosting specs, or just curious about your hardware's performance, Stressmark gives you the answers.
Features
Performance Dashboard
Get an instant overview of your server's health with a single command:
- TPS (Ticks Per Second) — Is your server keeping up?
- Memory Usage — How much RAM is being used vs available
- CPU Load — Current processor utilization
- Disk I/O — Storage read/write performance
- JVM Stats — Garbage collection and uptime info
Performance Grading
No more guessing if your server is "good enough". Stressmark calculates an overall performance grade based on multiple metrics:
- 🟢 Exceptional — Your server is running flawlessly
- 🟢 Good — Solid performance, no concerns
- 🟡 Fair — Playable, but room for improvement
- 🟠 Poor — Players will notice lag
- 🔴 Critical — Immediate attention needed
Stress Testing
The real magic: spawn fake players to stress test your server and find its breaking point.
- Spawn any number of bots — Start with 10, scale up to hundreds
- Realistic movement — Bots fly in patterns, loading chunks as they go
- Adjustable speed — Control how aggressively bots move and load chunks
- Live monitoring — Watch performance metrics change in real-time as load increases
- Safe testing — Bots are in spectator mode and don't affect gameplay
Player Capacity Estimation
Based on your benchmark results, Stressmark estimates how many real players your server can comfortably support.
Commands
| Command | What it does |
|---|---|
/benchmark | Quick performance overview |
/benchmark detailed | Full metrics report |
/benchmark stress start <count> | Spawn stress test bots |
/benchmark stress stop | Remove all bots |
/benchmark stress status | Check current stress test |
Use Cases
- Server Admins — Find out if your hardware can handle your player base
- Hosting Comparisons — Benchmark different providers with real data
- Event Planning — Test capacity before big server events
- Optimization — Measure the impact of config changes and plugins
- Troubleshooting — Identify performance bottlenecks
Compatibility
- Works on Fabric and NeoForge
- Server-side only (no client installation needed)
- Works on dedicated servers
Requirements
- Operator permissions to run commands
- Java 21