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Retro FastSuite

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Retro FastSuite

By Sosea1

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Fast recipe lookup for large Minecraft Forge 1.12.2 modpacks.

Mod Loaders
Minecraft
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About

Description

Retro FastSuite improves recipe lookup performance in large Minecraft Forge 1.12.2 modpacks.

The mod builds a conservative index of loaded recipes and uses it to skip recipes that cannot match the current crafting grid. Recipe matching itself is still performed by Forge: IRecipe.matches() remains the final authority, and recipes that cannot be classified safely stay on the normal fallback path.

This keeps recipe order and crafting behaviour intact while making broad lookups and failed matches much less expensive.

Compatibility

  • FastWorkbench
  • Universal Tweaks Crafting Cache
  • RetroPolymorph (WIP)

Performance

The bundled benchmark was run against 24,325 loaded recipes. Times below are the average per lookup in microseconds; lower is better. Results depend on the modpack, JVM, hardware, and lookup pattern.

Workload Retro FastSuite Vanilla scan Speedup
All matches: acacia planks 520.19 µs 7,743.59 µs 14.89×
All matches: sticks 567.16 µs 8,343.35 µs 14.71×
All matches: crafting table 431.73 µs 7,165.15 µs 16.60×
All matches: black shulker box 467.59 µs 7,798.17 µs 16.68×
Failed lookup 711.77 µs 11,476.92 µs 16.12×
First failed lookup 533.79 µs 12,280.99 µs 23.01×

The implementation is tested against ordered vanilla-style recipe scans, including positive cases, negative cases, alternative matching stacks, and randomized grids.

Installation

Place Retro FastSuite in the mods folder.

Requires MixinBooter

Source and license

Source: github.com/Sosea1/Retro-FastSuite

Retro FastSuite is based on FastSuite by Shadows of Fire and is distributed under the MIT License.