Bottleneck Profiler

A single handheld tool. Right-click a hopper, chest, pipe-capable machine, or any block exposing transfer rates.

Throughput Profiler

Diagnostic NeoForge mod for Minecraft 26.1.2 / NeoForge 26.1.2.76.

The Throughput Profiler

A single handheld tool. Right-click a hopper, chest, pipe-capable machine, or any block exposing item / fluid / energy transfer surfaces. A HUD snaps onto the screen with:

Field Meaning
Input Rate Items / fluids / energy entering the block per second
Output Rate Amount extracted per second
Saturation Share of rated max throughput in use (hoppers: 2.5 items/s)

Sneak-right-click closes the probe. Walking too far also clears it.

Crafting

 Q 
IGI
 C 

Quartz, iron, glass pane, comparator.

Notes

  • Hoppers use exact suck/eject accounting via mixin.
  • Other inventories / fluid tanks / energy handlers are sampled from NeoForge capabilities (Capabilities.Item / Fluid / Energy).
  • Chemicals and gas categories are reserved for future mod adapters (e.g. Mekanism).

The Bottleneck Profiler Team

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