java -server -Xms256M -Xmx4G -XX:UseSSE=4 -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:+UseStringDeduplication -XX:ParallelGCThreads=4 -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M -XX:+AggressiveOpts -XX:+ExplicitGCInvokesConcurrent -XX:+UseFastAccessorMethods -XX:+OptimizeStringConcat -XX:+UseAdaptiveGCBoundary -jar forge-1.12.2-14.23.4.2715-universal.jar nogui