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Minecraft Server Jar Parameters

We have backend jar configuration files so clients can use common parameters at startup for their servers. To use one of these, just go to the file manager (FTP) of your server and rename your existing server ".jar" file to one of the names listed below, when the server is started next it will use the parameters listed.

Name: java11.jar
Parameters: -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -XX:+AlwaysPreTouch
Note: This will make your server run on Java 11.

Name: perf.jar
Parameters: -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:-OmitStackTraceInFastThrow -XX:+AlwaysPreTouch -XX:MaxGCPauseMillis=200 -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=8 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=true -Daikars.new.flags=true
Note: Standard performance parameters.

Name: java13-perf.jar
Parameters: -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:-OmitStackTraceInFastThrow -XX:+AlwaysPreTouch -XX:MaxGCPauseMillis=200 -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=8 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=true -Daikars.new.flags=true
Note: Standard performance parameters. This jar file name will force your server to use Java 13 as well.

Name: java14.jar
Parameters: -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -XX:+AlwaysPreTouch 
Note: New and faster ZGC performance parameters. This jar file name will force your server to use Java 14 as well, which may not be compatible with some server software.

  • java, parameters, aikar, performance
  • 4 Users Found This Useful
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