Understanding Minecraft RAM requirements
Choosing the correct amount of RAM is the most important factor in ensuring your Minecraft server runs smoothly. RAM (Random Access Memory) acts as the server's short-term memory, storing the world state, player data, and active entities.
Factors influencing RAM usage
- Server Type: Vanilla servers are lightweight, while modded servers (Forge/Fabric) require significantly more RAM to load assets. Paper and Spigot servers are highly optimised and generally require less overhead.
- Player Count: Each active player increases the memory footprint. A server with 20 players will consistently require more RAM than a server with 2.
- World Size & Render Distance: Larger worlds and higher render distances force the server to keep more chunks loaded in memory.
- Plugins and Mods: Complex plugins or heavy modpacks can drastically increase the baseline RAM usage.
Recommended RAM allocations
While every server is unique, these guidelines provide a solid starting point:
- Vanilla/Paper (1-5 players): 2GB - 4GB
- Vanilla/Paper (10-20 players): 4GB - 8GB
- Modded (Light/Medium packs): 6GB - 10GB
- Modded (Large/Expert packs): 12GB+
Managing RAM on AwakeNode vs Other Hosts
On AwakeNode
Managing your RAM is simple. If you find your server is hitting its limits, you can upgrade your plan at any time. Once upgraded, your Xmx (maximum RAM) settings are updated automatically by our system. There is no need to manually edit startup scripts or configuration files.
On other hosts / manually
If you are using a different provider, you must manually edit your server's startup command. This is typically found in a .sh or .bat file. You will need to modify the -Xmx flag (e.g., -Xmx4G for 4GB of RAM). If your host does not allow you to edit these flags, you may be restricted by their panel settings.
Need help with performance?
If you are experiencing lag despite having sufficient RAM, it may be due to inefficient startup flags or JVM garbage collection settings. To add your own JVM flags, set a custom startup command in your server's tab.