Modern Netty

fabric mod that adds experimental iouring and kqueue support

1.8K Downloads

fabriccursedoptimizationutility

Rent Server with this Mod

About this Mod

What does it do?

A fabric mod that switches your transportation-method in regards of networking to achieve faster results on certain systems.

For example: MacOs/BSD => Kqueue or Linux => IoUring

This can be used either way on a fabric client or server.

Why should I use it?

If you're on Windows and neither on MacOs/BSD nor newer versions of Linux you don't have any benefits from downloading this mod.

Why'd you upload such a mod on modrinth

I made this mod for myself sometime ago and now I maintain it whenever and however I want.

Available Versions

Modern Netty 1.3.0-releaserelease

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric

December 11, 2025

Modern Netty 1.2.0-releaserelease

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric

July 29, 2025

Modern Netty 1.1.1-releaserelease

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5fabric

May 26, 2025

Modern Netty 1.1.0-releaserelease

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5fabric

April 5, 2025

Modern Netty 1.0.0-releaserelease

MC 1.21.4fabric

March 13, 2025

How to Install Modern Netty on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

Install Mod

Open the mod browser in the dashboard and search for "Modern Netty". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+15 more)

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Modern Netty server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is Modern Netty compatible with fabric?

Modern Netty officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Modern Netty – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Modern Netty consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.