ServerWarashi

Are weak-loaded entities piling up until your server starts lagging or crashes?
Do you need to know which chunks, machines, entities, or players are costing the most tick time?

ServerWarashi gives server administrators the visibility and control needed to find the real cause of performance problems.

Run an on-demand profiler to identify expensive chunks, entities, block entities, natural spawning, and server tasks. View MSPT, peak time, sample counts, and ticket ownership in a clear in-game report.

With Xaero's World Map installed, ServerWarashi adds a live performance overlay. Find laggy chunks, entity-heavy areas, chunk-loader coverage, inactive loaders, and dangerous locations outside your current map view. Start or stop profiling directly from the map, then inspect the results where they happen.

ServerWarashi also helps prevent common chunk-loading disasters:

• Detect chunks with excessive tracked entities or dropped items.
• Review estimated entity types before clearing the biggest source of the problem.
• Freeze supported block chunk loaders without deleting their tickets.
• Protect the server from extremely large entity-load batches.
• Add chunk-ticket owner, entity, and block-entity details to dedicated-server watchdog crash reports.

Commands

All commands require operator permission level 2.

/warashi perf open

Opens the current performance report on a compatible client.

/warashi perf analyze start [seconds] [open]

Starts a performance analysis session.

• seconds: Optional duration from 1 to 86400. Uses the server default when omitted.
• open: Optional true or false. Defaults to true and opens the report for the command user when possible.

/warashi perf analyze stop

Stops the active analysis session and publishes the report immediately.

/warashi loader frozen list

Lists all saved chunk-loader freeze policies.

/warashi loader frozen clear-orphans

Removes freeze policies whose supported chunk-loader tickets no longer exist.

/warashi loader frozen clear <dimension> <controller> <x> <y> <z>

Removes the freeze policy for one specific chunk loader.

Example:

/warashi loader frozen clear minecraft:overworld create_power_loader:andesite_chunk_loader 100 64 -200

Chunk loaders are normally frozen or unfrozen through the map context menu. These commands are intended for server maintenance and recovery.