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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.

34K загрузок24 подписчиковMITfabric

Обновлён 9 апреля 2026 г. · опубликован 4 февраля 2026 г.

Bura

Version: Alpha 0.2.0
Minecraft: 1.21.11
Loader: Fabric

Notice:

Bura Beta is currently planned to release in early July. 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

Версии

ВерсияКаналИграЗагрузчикиДатаСкачать
0.2.0Альфа1.21.11fabric9 апреля 2026 г..jar (85 КБ)
0.1.0Альфа1.21.11fabric15 февраля 2026 г..jar (69 КБ)

Ченджлог

0.2.0Альфа1.21.11 · 9 апреля 2026 г.

Bura Alpha 0.2.0

Performance

  • Improved chunk scheduling to reduce frame spikes during heavy world updates
  • Reduced CPU overhead in several client-side rendering paths
  • Lowered memory processing and reduced heap allocation pressure
  • Improved cache handling to reduce unnecessary GC activity
  • Added configurable cache limits for memory-sensitive systems

Compatibility

  • Fixed an incompatibility with Particle Rain where rain effects could disappear
  • Adjusted particle throttling to avoid breaking weather-related particles

Changes

  • Removed the old O key overlay screen
  • Refined visibility and LOD cache behavior
  • Improved internal throttling behavior during spike conditions

Known issues

  • Some aggressive culling can still cause occasional flicker or ghosting
  • Further compatibility work may still be needed for some rendering mods.

Полная история изменений — на Modrinth.

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