Do I need Forge to use Opis Mod?

Yes, Opis requires Minecraft Forge and MobiusCore. It's a Forge-only mod, not available for Fabric or vanilla Minecraft.

Will running Opis cause server lag?

The initial profiling run can cause temporary TPS lag depending on your server size. It's best to run profiling during off-peak hours to avoid impacting players.

Can regular players use Opis or just admins?

Any player can try the /opis command by default, but admins can restrict it with permissions. You can configure who has access to which features.

What information does Opis show me?

Opis shows which chunks eat the most TPS, problem tile entities, entity counts, server TPS, chunk load data, and network speeds. You can drill down to find exactly what's causing lag.

Can I teleport to lag sources with Opis?

Yes, Opis lets you teleport directly to chunks and areas with high lag. With MapWriter integration, you can see problem areas on a map and jump to them quickly.

Opis Mod 1.7.10 (Server Profiler) - Minecraft Forge

Opis Mod is a server profiler tool that helps you find what’s slowing down your Minecraft server. If your server’s TPS is tanking and you can’t figure out why, Opis will show you exactly which chunks, tile entities, or entities are the problem. It’s an essential mod for any server admin who wants to actually maintain decent performance.

What Does Opis Do?

Opis gives you detailed timing information about entities and tile entities on your server. Run a profile and it displays results in an easy-to-read list. You can then teleport directly to the source of lag to see what’s causing it firsthand. The mod integrates MapWriter support so you can see problem areas on a map and quickly jump to them.

Key Features

Profile chunks to find which ones are eating TPS
Monitor tile entities and entities in real-time
Jump directly to lag sources using teleportation
View server TPS, chunk load data, and network speeds
MapWriter integration for visual lag tracking
Customizable player permissions

Who Can Use Opis?

The mod is designed for server admins, but you can set permissions so other players can access certain features. Type /opis in-game to open the interface. By default everyone can issue this command, but admins can lock it down with permissions.

Server admins get full access to monitor main TPS, tile entities, entities, loaded chunks, TPS per chunk, and current upload/download speeds. Regular players with permission can teleport to selected chunks and see areas with high tile entity counts or TPS issues.

Note: Running Opis profiling can cause temporary TPS lag depending on your server size. Run it during low-traffic times when possible.

Requirements

You’ll need:

How to Install

Follow the standard mod installation process:

Make sure you have Forge installed for your Minecraft version
Download the Opis mod file that matches your version
Place the .jar file in your .minecraft/mods folder
Launch Minecraft through the Forge launcher

Need more details? Check out our guides for installing mods with Minecraft Forge or installing Fabric mods.

Opis Mod Download Links

For Minecraft 1.6.4

Opis-Mod-1.6.4.zip
This file is part of Opis Mod 1.7.10 (Server Profiler) – Minecraft Forge. Visit the main page for features, installation guide, screenshots, and more download options.

Size: 9.4 MB
Download Now!

For Minecraft 1.7.2

Opis-Mod-1.7.2.jar
This file is part of Opis Mod 1.7.10 (Server Profiler) – Minecraft Forge. Visit the main page for features, installation guide, screenshots, and more download options.

Size: 5.0 MB
Download Now!

For Minecraft 1.7.10

Opis-Mod-1.7.10.jar
This file is part of Opis Mod 1.7.10 (Server Profiler) – Minecraft Forge. Visit the main page for features, installation guide, screenshots, and more download options.

Size: 6.6 MB
Download Now!

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