LeanCore

LeanCore is server-side memory governor for Hytale. Unloads idle map regions, trims view radius under heap pressure, and learns which zones get revisited so it keeps the ones you actually use.
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LeanCore-1.3.0.jar

File nameLeanCore-1.3.0.jar
Uploader
DurkzPRGDurkzPRG
Uploaded
Jun 9, 2026
Downloads
18
Size
204.0 KB
File ID
8221945
Type
R
Release
Supported game versions
  • 0.5
DownloadInstall Via App

What's new

Changelog (1.3.0)

Added

  • /leancore savings: session JVM heap peak, baseline, delta, governor state, and cumulative zone/chunk actions (measured vs estimated labels)
  • DedicatedBootstrap: one-time preset on first dedicated boot (governEnabled, viewRadiusGovernanceEnabled, learningEnabled; unloadEnabled stays off until you opt in)
  • 10-minute view-radius grace after dedicated runtime start

Changed

  • ZoneDormancyMap: incremental refresh without full map rebuild; stale zone prune
  • OnlineLinearDemandModel: per-update weight decay (0.9995) for playstyle changes
  • chunkUnloadEventTracking: engine unload counts via world-thread polling (no ChunkUnloadEvent ECS listener)
  • STANDARD/FULL governor tick runs on the world thread

Fixed

  • Crash on profile FULL / dedicated preset (Assert not in thread in engine ChunkUnloadingSystem) caused by off-thread ChunkStore access and unsafe unload event registration
  • Regional pressure probe (S4) no longer reads ChunkStore from the scheduler thread

Notes

  • /leancore savings reports JVM heap only — not OS/VPS RSS
  • dedicatedBootstrapEnabled: false skips the auto-preset
  • Enable unloadEnabled manually on dedicated hosts after baseline with /leancore memory and /leancore probe

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