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See what causes lag. Fix what matters.
Tickwise is a lightweight server-side performance monitoring mod designed to help modded Minecraft servers identify what is actually causing performance issues, who is responsible, and where it happens.
Unlike traditional performance monitoring tools that primarily provide aggregated technical data, Tickwise connects server performance directly to players, chunks, machines, entities, mods, and locations.
Tickwise measures the real CPU cost of objects that tick on your server and turns that data into information that is easy to understand.
It can track performance by:
This makes it possible to quickly answer questions such as:
Which player is causing the most server load?
Which chunk is responsible for the lag?
Which machine or entity is consuming the most tick time?
Tickwise continuously collects performance data on the server and aggregates it over time.
The system tracks:
Performance data is maintained using a rolling window with an exponential average over approximately 60 seconds.
One of Tickwise's main features is its ability to associate performance costs with players.
When possible, ownership is resolved through:
Tickwise never stores ownership for every individual block. Instead, its fallback system operates at the chunk level, keeping the tracking lightweight and efficient.
Tickwise isn't only an administrator tool.
Players can optionally see their own performance impact directly in-game.
The HUD can display information such as:
Base: 2.1 ms/t — 7%
The widget can be configured with different thresholds and colors:
🟢 Low impact 🟠 Moderate impact 🔴 High impact
The HUD remains hidden below the configured threshold so normal players aren't constantly presented with performance information.
Tickwise includes an optional chunk performance overlay.
Press the configurable keybind to request performance data for the chunks around you and visualize their cost directly in the world.
Players can always inspect their own areas, while administrator permissions can be required to inspect other players' areas.
Tickwise provides several commands for server administrators:
/tickwise top players [limit]
/tickwise top chunks [limit]
/tickwise top mods [limit]
/tickwise top types [limit]
/tickwise inspect <player>
/tickwise report
/tickwise goggles
Reports can contain information about:
An optional Discord webhook can also be used when generating reports.
Tickwise is designed specifically for large modded servers and modpacks.
Its architecture is built around a shared vanilla-based core with loader-specific integrations, allowing the majority of the performance-critical code to remain shared between platforms.
Minecraft 1.21.1
The architecture is designed with future ports in mind, while development focuses first on Minecraft 1.21.1.
A performance monitoring mod shouldn't become part of the performance problem.
Tickwise therefore uses tick sampling instead of instrumenting every server tick.
By default, the mod measures 1 tick out of every 20, then extrapolates the results.
On ticks that aren't being measured, the hot path performs only a simple boolean check with zero allocations.
Less than 1% average MSPT overhead
This is a core requirement of the project, not an optional optimization.
Tickwise is designed to coexist with large and complex modpacks.
The project aims to ensure:
Tickwise focuses on measurement and visibility, not automatic punishment.
It currently does not:
Automatic machine throttling is planned for a future version once enough production data exists to implement it safely.
Large modded servers can contain hundreds of mods, thousands of machines and enormous amounts of ticking entities.
When performance starts dropping, finding the cause shouldn't require guessing.
Tickwise turns server performance into actionable information.
🟢 Measure. 🟢 Attribute. 🟢 Locate. 🟢 Optimize.
