This article is designed to target advanced users, server administrators, and modders who are searching for a solution to memory leaks, performance optimization, and Java environment management for Project Zomboid . Published: October 2024 (Updated for Build 41.78+ and future Unstable branches)
Azul's C4 (Continuously Concurrent Compacting Collector) algorithm runs in the background without pausing your game. It is specifically designed for large heaps (many GBs of RAM) and low latency. 3. The "Updated" Factor: Build 41.78+ and the Unstable Branch The keyword "updated" is crucial here. For years, Project Zomboid used Java 8. However, recent updates (Build 41.78 and the upcoming Build 42) have embraced newer Java features. zulu platform x64 architecture project zomboid updated
Update your server start script to use:
| Metric | Stock Oracle Java 8 (32-bit) | Azul Zulu 17 (x64) | | :--- | :--- | :--- | | | 2.5 GB (Capped) | 8.0 GB | | Garbage Collection Pauses | 200ms - 500ms (Every 60 sec) | < 2ms (Concurrent) | | FPS in Louisville (Rain) | 28 - 35 FPS | 55 - 70 FPS | | Server TPS (Tick Rate) | Drops to 0.8 during horde spawn | Stable 1.0 TPS | | World Load Time | 58 seconds | 29 seconds | This article is designed to target advanced users,
C:\Users\YourName\Zomboid\ProjectZomboid64.json (or Zomboid.ini ) However, recent updates (Build 41
"vmArgs": [ "-Xms4096m", // Initial heap (4GB) "-Xmx8192m", // Max heap (8GB - Adjust for your RAM) "-XX:+UseZGC", // Zulu Garbage Collector (Low latency) "-XX:-ZUncommit", // Prevent memory from going back to OS (performance) "-Dzomboid.steam=1", "-Djava.library.path=./natives/" ]