How to increase the Minecraft server RAM allocation


Following up on the the previous tutorial How to create your Minecraft server , one key function to know about is the amount of RAM allowed to the server. Minecraft is highly dependent on resources especially on RAM. Allocating more is not a very complicated process and the following guide will describe how to do so on Linux-based ones.

The start command has a number of arguments including the one related to RAM allocation:

java -Xmx4096M -Xms4096M -jar minecraft_server.jar nogui

The interesting bit is this:

-Xmx4096M -Xms4096M

Replace the value in megabytes of 4096 on both arguments with the available RAM of your machine. For example, you could replace them with 8192M which means 8 GB of RAM allocated on startup to the Minecraft server.
A full example with 8GB :

java -Xmx8192M -Xms8192M -jar minecraft_server.jar nogui


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