FLAGS GENERATOR

A JVM startup flag generator specifically designed for optimizing Minecraft servers.

General Settings

File Name

Flags Profile

Environment

Software

Memory Allocation

Amount (RAM)8 GB

1 GB64 GB

Calculate Overhead

Avoid OOM kills

No GUI

Disable built-in UI

Use Variables

Extract to top vars

Auto-Restart

Loop on crash

Generated Script

#!/usr/bin/env bash

java -Xms8192M -Xmx8192M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true -jar server.jar --nogui

Place this script in the same directory as your server jar.