Bons and Furious

Your CPU lives its life one tick at a time.

Faster worlds. Smoother busy scenes.

Bons and Furious reduces the repeated work behind terrain generation, loading, rendering and server ticks. It also fixes specific freezes and crashes in the mods it supports. Add it alongside your existing performance mods, with a separate switch for every optimization and fix.

In our tested Forge pack: about 9× world-generation throughput, 5½ minutes less waiting to enter a new world, and 17% higher average FPS with 64 animated mobs.

Those results were measured with Bons and Furious 1.0.31 on Minecraft 1.20.1, on 5 October 2026. They are not measurements of the current 1.0.48.1 release or the NeoForge build.

What you get

• Less waiting for terrain. Reuse terrain calculations and ground-height estimates instead of repeating them for neighbouring chunks. In the flight test, an average of 504 of 529 nearby chunks were loaded with Bons, compared with 354 without it.
• Smoother crowded scenes. Reduce repeated animation, model and rendering work across Minecraft, Embeddium, Oculus, Entity Model Features, Entity Texture Features and other supported mods. The matched 64-mob scene gained 17% average FPS and 34% in 1% lows.
• Less work during loading and saves. Speed up recipe processing, resource loading, model rebuilds and chunk serialization, and move supported saved-data and player-file writes off the server thread.
• Fewer first-spawn spikes and specific mod freezes. Prepare mob classes before their first spawn, and repair reproduced threading and world-generation bugs. Also stop unloaded ship chunks from continuing to tick and prevent a TerraBlender crash caused by saved rules that reference missing terrain noise. The first-night improvement was measured separately with 1.0.35; details are below.

• Less memory held after leaving a world. Release old worlds and players retained by specific paths in Distant Horizons, JEI, Flywheel, Smart Particles and other supported mods. These fix reproduced leaks; they do not remove every source of memory growth.

Measured on an already optimized pack

Both sides kept ModernFix, FerriteCore, Radium and C2ME. The client also kept Embeddium, ImmediatelyFast and EntityCulling, plus Oculus, Distant Horizons, Complementary shaders and Fresh Animations. These gains come from adding Bons and Furious to that stack.

5 October 2026 · Forge 1.20.1 · Bons and Furious 1.0.31 · four measured runs per arm. Each comparison used the same machine and matched settings, with and without Bons. The server and client results below came from different machines.

Server: Core Ultra 9 285K. Client: Ryzen 9 3900X / RTX 3080, 1080p with shaders. C2ME’s reduceLockRadius was enabled. The FPS test used the same saved world, with Distant Horizons generation off and JEI’s background work finished.

Generation also used 83% less CPU time and approximately 90% less memory allocation per chunk. That is less temporary garbage, not 90% less RAM: live server heap after startup was about 30 MiB higher with Bons.

Results depend on the pack, settings and hardware. CPU savings may give little extra FPS when the GPU is the limit. This test does not establish how much faster 1.0.31 is than 1.0.26: the machines and settings changed. The same-run 1.0.30 comparison showed similar generation and steady mob-scene FPS.

Full results, test method and earlier benchmarks.

A closer look at the improvements

These Forge 1.20.1 examples explain where the savings come from. They measure individual tasks, not an extra FPS or TPS gain to add to the whole-pack results.

The mob warm-up uses about 7 MB more class memory and adds roughly half a second to a singleplayer join. Other controls reduce chunk-save allocation, inventory advancement checks, idle mob and camera-shake scans, and repeated work in mods such as Cataclysm and Mekanism. The 1.0.46 and 1.0.47 examples above are separate checks, not a new whole-pack benchmark. Distant Horizons and Valkyrien Skies still have other paths that retain old worlds. Details and remaining limits.

Measurements and caveats · Every control and its evidence

Choose your build

Each build uses one JAR for client and server, with no required target mods. Coverage differs between builds; the figures above are Forge 1.20.1 measurements.

The Forge build contains 322 optimizations, 57 fixes and 5 deliberate behaviour changes. Those five controls include frame pacing and experimental Radium options; their trade-offs are documented individually. All 384 controls are listed in config/bons_and_furious.properties. To disable one, set its key to false and restart.

Forge 1.20.1 covered mods (all optional)

Rendering, shaders and ambience: Embeddium, Oculus, ImmediatelyFast, Entity Texture Features, Entity Model Features, EntityCulling, Fusion, Colorwheel, Ryoamic Lights, Presence Footsteps, AmbientSounds, CIT Reforged, FancyMenu, Particular, Subtle Effects, Smart Particles, Punchy.

Shared libraries and server performance mods: GeckoLib, Architectury API, Curios API, Structure Gel API, Radium, ModernFix, ChunkSending, TerraBlender, Citadel, Lionfish API, Placebo, Kiwi, Cucumber, CoFH Core, L2 Library, Pehkui, Almost Unified, ElysiumAPI, Zeta, Flywheel, AzureLib, Knight Lib, LDLib, Advanced Wall Climber API, Item Filters, Text Animator.

Ships, structures and distant terrain: Valkyrien Skies, Trackwork, Distant Horizons, Structurify, Sakes Structures, Oh The Biomes We’ve Gone, Dynamic Trees.

Content and gameplay: Alex’s Caves, Ice and Fire, Ars Nouveau, JEI, Farmer’s Delight, Relics, Timeless and Classics Zero (TaCZ), Terramity, Ad Astra, Fowl Play, Butterflies, Goblins Tyranny, Under the Moon, Nether Depths Upgrade, Spawn, Cryptic Foes, Hostile Villages, Scuba Gear, Occult, Scorched and Better Combat, Create, Pipez, Storage Drawers, Immersive Engineering, Slice & Dice, Cooking for Blockheads, Alex’s Mobs, Mowzie’s Mobs, Mutant Monsters, Critters and Companions, Bosses of Mass Destruction, FD Bosses, Legendary Monsters, Ribbits, Artifacts, Simply Swords, SlashBlade: Resharped, Dungeons Delight, Jaden’s Nether Expansion, Regions Unexplored, L_Ender’s Cataclysm, Mekanism, Rats, Aquaculture, XercaPaint, Botania, Reliquary, Immersive Aircraft, Born in Chaos, Luminous Beasts, Rustic Engineer, Unique Dungeons, More Artifacts, Nature’s Aura, L2 Hostility, Species, Celestisynth, Brutality, Clanging Howl, TreeChop, Cable Facades.

Coverage means the tested build and the specific code paths of each mod, not every feature. Tested builds per mod: Compatibility and target versions.

Install the matching build

For Minecraft 1.21.1, use bons_and_furious-neoforge-1.0.47+mc1.21.1.jar, Java 21 and NeoForge 21.1.252 or newer. MixinSquared is bundled; NeoForge supplies MixinExtras. NeoForge setup and compatibility.

For Minecraft 1.20.1 / Forge:

1. Download bons_and_furious-1.0.48.1.jar from the Files tab and put it in mods/ on the client and on the server. Nothing else is required; every target mod is detected at load. The two small mixin libraries it uses, MixinExtras and MixinSquared, are bundled inside it.
2. Start once. The mod writes its config file with its defaults (every switch on except jei_join_recipe_deferral and radium_experimental_tickets_spawning and vanilla_background_level_dat) and logs how many controls are enabled.
3. To turn one off, set its key to false and restart. Client-only patches (renderer, shaders, ambience) never load on a dedicated server.

JVM overrides, log messages and troubleshooting: Installation and configuration.

Compatibility

Keep your optimization stack: Embeddium, ImmediatelyFast, ModernFix, FerriteCore, Radium and C2ME. Bons and Furious changes paths that still did unnecessary work in the tested pack, including a few inside Embeddium, ImmediatelyFast and Oculus themselves. With C2ME installed it also gives Radium and ModernFix three optimizations back that they switch off for every C2ME build, as long as the C2ME module that would clash with each one is off in c2me.toml.

On newer Forge, JEI and ModernFix builds that already include eight of these changes, the corresponding Bons controls step aside automatically. With Collections Of Optimizations, shared controls also check which implementation is active so the same optimization is not applied twice or left disabled in both mods. Compatibility details.

Source, licence and giving back

Licensed GPL-3.0-only, with upstream attribution and notices retained. Source and build instructions · Wiki · Report an issue

Upstream pull requests

Pull requests sent to the projects this mod patches: 13 merged, 83 open, 18 closed without merge (status checked 23 October 2026).

Authorship and credits

The majority of the code was written by others. AI assisted portions of the code, testing, packaging and documentation. Original mod authors retain credit for their work.

The project logo is AI-generated promotional concept art. It does not depict content added by this mod.