Java Docker Images & JVM Arguments

Reference: https://github.com/Mukul1127/Minecraft-Performance-Flags-Benchmark

If you are on Java 11+ (1.12+) we recommend the following arguments

-XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+AlwaysActAsServerClassMachine -XX:+AlwaysPreTouch -XX:+DisableExplicitGC -XX:NmethodSweepActivity=1 -XX:ReservedCodeCacheSize=400M -XX:NonNMethodCodeHeapSize=12M -XX:ProfiledCodeHeapSize=194M -XX:NonProfiledCodeHeapSize=194M -XX:-DontCompileHugeMethods -XX:MaxNodeLimit=240000 -XX:NodeLimitFudgeFactor=8000 -XX:+UseVectorCmov -XX:+PerfDisableSharedMem -XX:+UseFastUnorderedTimeStamps -XX:+UseG1GC -XX:MaxGCPauseMillis=130 -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=28 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=20 -XX:G1MixedGCCountTarget=3 -XX:InitiatingHeapOccupancyPercent=10 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=0 -XX:SurvivorRatio=32 -XX:MaxTenuringThreshold=1 -XX:G1SATBBufferEnqueueingThresholdPercent=30 -XX:G1ConcMarkStepDurationMillis=5.0 -XX:G1ConcRefinementServiceIntervalMillis=150 -XX:G1ConcRSHotCardLimit=16 -XX:AllocatePrefetchStyle=3

If you are on Java 8 (<1.12) we recommend the following arguments

-XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+AlwaysActAsServerClassMachine -XX:+ParallelRefProcEnabled -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:+PerfDisableSharedMem -XX:+AggressiveOpts -XX:+UseFastAccessorMethods -XX:MaxInlineLevel=15 -XX:MaxVectorSize=32 -XX:+UseCompressedOops -XX:ThreadPriorityPolicy=1 -XX:+UseDynamicNumberOfGCThreads -XX:NmethodSweepActivity=1 -XX:ReservedCodeCacheSize=350M -XX:-DontCompileHugeMethods -XX:MaxNodeLimit=240000 -XX:NodeLimitFudgeFactor=8000 -XX:+UseFPUForSpilling

Full default forced arguments (can't be modified)

java -Xmx{{SERVER_MEMORY}}M {{JVM_ARGS}} -Dterminal.jline=false -Dterminal.ansi=true -jar server.jar

Java Docker Images

If you get the following error, you are most likely on the incorrect Docker Java image for the MC version you are running

Available Docker Images Listed Below