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Bura project artwork

Modrinth · Minecraft mod

Bura

Bura is an alpha Fabric performance mod that reduces lag spikes and improves FPS stability by optimizing chunk compilation, upload scheduling, and visibility culling in singleplayer.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Bura release should I use?

Updated 4 months ago
alpha file 0.2.0
Game version 1.21.11
Loader Fabric

Bura 0.2.0 targets 1.21.11 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.

Where it goes

Is Bura required on the client, server, or both?

Installation on the client is optional. Installation on the dedicated server is optional.

Client Optional
Dedicated server Optional
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source marks this as usable on both the client and server.

What else does Bura 0.2.0 need?

0.2.0. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Bura without breaking your instance.

Built for Bura 0.2.0. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 0.2.0. It targets 1.21.11 with Fabric; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    Installation on the client is optional. Installation on the dedicated server is optional.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 0.2.0. It opens that exact file at the source.

About this project

What does Bura add?

Bura

Version: Alpha 0.2.0
Minecraft: 1.21.11
Loader: Fabric

Notice:

Bura Beta is currently planned to release in mid september. Thank you to everyone for your support and feedback throughout development!

Bura is an experimental performance mod focused on improving FPS consistency and reducing rendering-related CPU spikes. It currently targets chunk scheduling, upload pacing, and visibility work, with a strong focus on lower-end and CPU-limited systems.

Performance Snapshot

Tested on Intel Core i3-10100F @ 3.60GHz against Vanilla Fabric under the same settings and world conditions.

Buraafterandbefore2.0

Metric Vanilla Fabric Bura Alpha 0.2.0 Change
Peak FPS 140 297 +112%
Average Frame Time 7 ms 4 ms -42%
CPU Usage (Process) 51.6% 25.4% -50%
95th Percentile MSPT 2.96 ms 2.28 ms -23%

What Bura Optimizes

Chunk compilation scheduling

Bura reduces frame spikes caused by chunk rebuild bursts by spreading expensive work more intelligently.

Chunk upload pacing

GPU upload work is distributed across frames to avoid sudden stutter from large render updates.

Visibility culling

Bura reduces unnecessary rendering work by avoiding repeated processing for geometry that is not visible.

Compatibility

Bura is designed to work alongside other optimization mods and focuses primarily on frame pacing and workload scheduling.

Tested combinations:

  • Sodium
  • Iris
  • ImmediatelyFast
  • Entity Culling
  • Lithium
  • FerriteCore

Known Limitations

  • Aggressive culling may still cause occasional chunk flicker or ghosting.
  • Alpha build: behavior may change between versions.
  • Some particle or rendering mods may require compatibility fixes.

Roadmap

  • Reduce memory usage and heap allocation rate to lower gc stutter
  • Improve chunk loading behavior at high movement speeds
  • Reduce flicker from aggressive visibility culling
  • Expand compatibility with more rendering mods

Project description from Modrinth.

Pick your setup

Bura by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Bura versions and loaders

2 of 2 releases match

Looking for an older file? The official Modrinth project page is in Resources.