Arma Reforger Performance & AI Limit Calculator
Dial in your server's operating block for your player count, CPU, and scenario. Get a ready-to-paste
"operating" JSON block and the critical -maxFPS startup flag.
Quick Presets
Server Configuration
Disables all AI (disableAI: true) for maximum player performance.
AI Limit
30
aiLimit
Max View
1600
meters
-maxFPS
40
startup flag
Bandwidth
2100
kbps est.
JSON Operating Block
"operating": {
"aiLimit": 30,
"disableAI": false,
"serverMaxViewDistance": 1600,
"networkViewDistance": 1500,
"serverMinGrassDistance": 50,
"playerSaveTime": 120,
"disableNavmeshStreaming": []
}
Paste this as the "operating" object inside your config.json server configuration file.
Add the startup flag to your launch command
The -maxFPS value is not part of the JSON config — it must be passed directly to the server executable:
ArmaReforgerServer -config config.json -maxFPS 40
Setting Reference
| Property | Location | Effect |
|---|---|---|
| aiLimit | operating block | Max number of active AI entities. -1 = unlimited. Lower = better CPU performance. |
| disableAI | operating block | When true, all AI is disabled server-wide. Ideal for pure PvP scenarios. |
| serverMaxViewDistance | operating block | Maximum view distance in meters clients can set. Capped at 10,000 m. Major performance lever. |
| networkViewDistance | operating block | Distance at which entities are networked to clients. Must be ≤ serverMaxViewDistance. |
| serverMinGrassDistance | operating block | Minimum grass render distance enforced on all clients. 0 = disabled (best performance). |
| playerSaveTime | operating block | Interval in seconds between automatic player state saves (default 120). |
| -maxFPS | startup flag | Server-side FPS cap. Prevents the server from burning CPU during idle periods. |
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