Performance and security

Diagnosing lag, optimisation and security without the myths.

Performance and security · 3 min

Defending against lag machines: find and isolate the source

How to distinguish a heavy construction site from an incident, localize a farm by profile and introduce verifiable restrictions.

Paper; prevention, diagnosis and administration of your own world

Performance and security · 3 min

FPS, TPS, MSPT and ping: find what is slowing Minecraft down

The camera jerks, the block returns, or the players freeze: understand the signs of the client, server and network.

Java and Bedrock; spark-command for server administrator

Performance and security · 3 min

Installing Iris and shaders in a separate Minecraft profile

Installing Iris, selecting compatible Sodium, the mods and shaderpacks folders and launching it for the first time and checking the result.

Java Edition; example for 1.20.4, separate releases for 1.21.1 and 26.3

Performance and security · 3 min

Lightweight Minecraft shaders: MakeUp, Miniature and Complementary

What is the difference between the three shaders, which effects to check first and how to compare them on your computer.

Java Edition with Iris compatible

Performance and security · 3 min

Minecraft account security: Microsoft, server passwords and mods

Separate access, configure recovery and 2FA, check the build source and act on suspicious input.

Java and Bedrock; Microsoft account and additional server accounts

Performance and security · 3 min

Minecraft crashes with mods: find the conflict in the log

Analysis of dependencies and reasons for crashes, testing in halves with libraries and a safe test on a copy of the assembly.

Java Edition; Fabric and NeoForge

Performance and security · 3 min

Minecraft server memory: Xmx, container limits and garbage collection

How to choose Java for Paper, separate heap from RSS, leave some margin for the process and check the reason for the stops.

Java server; Paper 26.1+ requires Java 25

Performance and security · 3 min

Minecraft server metrics: ticks, onboarding and returning players

A set of measurements with definitions: MSPT, active players, entry onboarding funnel, D1 retention and payment without double counting.

Own Minecraft server; example definitions and Prometheus/Grafana

Performance and security · 3 min

Minecraft settings for a low-end PC: find the expensive option

How to check resolution, chunk, shader, selected video card and laptop warming up without FPS promises.

Java Edition; Menu names depend on the version and graphic mods

Performance and security · 3 min

Minecraft shader screenshots: framing, lighting and a PNG file

Keys F1/F2, screenshots folder, lighting preparation, framing and an honest caption for the game photo.

Java Edition; F1/F2 with standard keys

Performance and security · 3 min

Paper Anti-Xray: enable ore concealment and test mining

Where to change the world config, how the 1/2/3 modes differ and how to check hidden ore without bypass rights.

Paper; use the configs and documentation of the installed release

Performance and security · 3 min

Reading spark: find expensive call stacks during a lag spike

command entries, problem time selection, invested percentages, hypothesis tests and re-profile after change.

Paper and other supported Java servers; command requires spark rights

Performance and security · 3 min

Render and simulation distance: why a visible farm may stop

The difference between Render Distance and Simulation Distance, server limitations and simple experience with an observed farm.

Java and Bedrock; the specific boundaries of the mechanics depend on the edition

Performance and security · 3 min

Shaders do not work: settings, ZIP files, black screens and GLSL errors

Iris diagnostic tree: where to look for the ZIP, how to return the image, and what latest.log lines are needed for help.

Java Edition, Iris; Bedrock requires a separate graphics path