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Lag Goggles: Legacy

by FalsePattern · for Minecraft

A backport of TerminatorNL's LagGoggles to 1.7.10

17KDownloads
18 mo agoLast updated
LGPL-3.0-onlyLicense
ForgeLoaders

About Lag Goggles: Legacy

From Modrinth

A backport of TerminatorNL's LagGoggles to 1.7.10

LagGoggles Legacy

A backport of TerminatorNL's LagGoggles to 1.7.10.

Dependencies

Original description:

Intuitive lag hunting!

LagGoggles is a profiler where you can see timings in the world, visually. It comes with a custom GUI using a configurable keybind.

You can use LagGoggles as a player too! This is my attempt to create an understanding of what causes lag on a server to regular players.

I noticed some common misconceptions like having machines spread out over different chunks causes less lag than putting it in one chunk.

With LagGoggles, you can look around and see that alot of small things like pipes or cables cause a tiny bit of lag most of the time, often resulting in more lag than a machine right next to the source would.

Video explaining the concept

Massive thanks to Grok DuckFarmer for making this video.

Minecraft Talk 35 - LagGoggles and Better Server Play

IMAGE ALT TEXT HERE

Features

  • Teleporting to sources of lag
  • Client GUI, including overlay and clickable menus
  • Colour scale for easy spotting of sources of lag.
  • Calculations are done on the client, so each client can have a different colour scale.
  • Clientside FPS support!
  • Checks render time for Entities, Tile entities and event subscribers
  • It's very young, but it should give some insight in what may cause FPS issues.
  • Config for client:
  • Custom gradients
  • Colorblindess support
  • Config for server
  • Custom permissions for players (non-operators)

Configuration

  • Drop the jar in the /mods folder
  • Serverside configuration is not required and has no effect.
  • Clients can edit the config to change the colour scale.

How it works

Entities, blocks and event-subscribers are timed using System.nanotime() before and after the tick() and update() methods. These times are being recorded and sent to the client when the profiler is done.

Benefits

  • Visualisation of various sources of lag
  • Learn your players to build lag-free bases.

Highlights

From source data

Game versions

Built for Minecraft 1.7.10.

Loaders

Runs on Forge.

Footprint

Rated a light load on a server.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Performance

Makes the game or server run faster or lighter without changing how it plays.

Works on a server

From source side support

Modrinth lists server-side support for Lag Goggles: Legacy as optional: it can run on a server, but isn’t required there.

Compatibility

Game
Minecraft
Loaders
Forge
Runs on
Serveroptional on the server
Game versions
1.7.10

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
  • ✓AuthorFalsePattern, as published on Modrinth
  • ✓LicenseLGPL-3.0-onlyFree

Lag Goggles: Legacy, answered

Generated from the mod’s own source data.

Do my players need to install Lag Goggles: Legacy?

Modrinth lists server-side support for Lag Goggles: Legacy as optional: it can run on a server, but isn’t required there.

Which loaders does it support?

Forge.

Is it free?

Yes. Lag Goggles: Legacy is free to download from Modrinth. Its license is LGPL-3.0-only.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Lag Goggles: Legacy on a Minecraft server.

Deploy in about a minute from $4.20 a month, then add Lag Goggles: Legacy in one click.