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.
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About
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
- Minecraft 1.21.8
- Works on Fabric and NeoForge
- Server-side only (no client installation needed)
- Works on dedicated servers, singleplayer, and LAN worlds
Requirements
- Operator permissions to run commands
- Java 21
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