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MemGuard

Reduces RAM usage in large modpacks and servers by caching NBT strings, monitoring memory usage, and triggering garbage collection at optimal times.
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MemGuardForge v1.0.5

File namememguard-forge-1.20.1-1.0.5.jar
Uploader
SeishiroNagiSeishiroNagi
Uploaded
Oct 8, 2026
Downloads
752
Size
5.1 KB
Mod Loaders
Forge
File ID
9098627
Type
R
Release
Supported game versions
  • 1.20.6
  • 1.20.5
  • 1.20.4
  • 1.20.3
  • 1.20.2
  • 1.20.1
  • 1.20
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Curse Maven Snippet

Forge

implementation "curse.maven:memorymod-1468440:9098627"

Learn more about Curse Maven

What's new

MemGuardForge v1.0.5 (Forge 1.20.x) - Performance fix: no more lag spikes

  • Removed all forced garbage collection (System.gc()). Version 1.0.3 forced a full GC every 5 minutes on the server thread and after every texture atlas upload, causing freezes of 0.5-3 s in large modpacks. Tested in a 364-mod pack: the 609 ms freeze every 5 minutes is gone (largest GC pause is now a normal 128 ms).
  • Fixed the NBT string cache: it now really reuses one shared instance per repeated short string, without a global lock (lock-free, bounded to 4096 entries).
  • Lighter memory monitor: one status line every 30 minutes, warning above 85% heap use.

Drop-in replacement for 1.0.3 (same mod id memguard). Recommended for every Forge user.

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