MemoryTune

MemoryTune is a lightweight Fabric optimization mod that reduces memory pressure and stabilizes FPS — automatically, with no config required.

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Features

Adaptive performance (client)

• Monitors FPS, heap usage, GC activity, and system memory pressure
• Applies performance tiers when needed — escalates slowly, recovers gradually
• Automatically adjusts settings such as:
  • Render distance & simulation distance
  • Particles, entity render distance, and entity shadows
  • Graphics preset, ambient occlusion, and biome blend
  • Mipmap levels, weather/cloud range, and texture filtering
• Culls distant non-essential particles, block-break particles, and particle emitters
• Restores your original settings on world change or when closing the game

Memory management (client & server)

• Tracks runtime memory pressure: Stable → Elevated → High → Critical
• Under high pressure, trims internal chunk/entity tracking caches on the server
• Uses adaptive LRU caches and object pooling for chunk metadata
• Lightweight client-side monitoring — no heavy chunk/entity bookkeeping on the client

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Notes

Performance impact depends on your hardware, world, and mod setup.

MemoryTune focuses on runtime memory efficiency and adaptive client-side tuning — not a full renderer rewrite. It does not change vanilla gameplay mechanics.