How to Create a Timings or Spark Report
Learn how to generate performance reports to diagnose lag on your Minecraft server.
Timings and Spark reports show you exactly what's using the most CPU time on your server — which plugins, tasks, or world operations are causing lag.
Method 1: Spark (Recommended)
Install Spark if needed
Paper 1.21+ has Spark built-in. For other servers, install from spark.lucko.me.
Wait 5-10 minutes
Let the profiler collect data during normal gameplay with players online.
Method 2: Paper Timings
Start timings
timings onReading the Report
In a Spark report:
- Wider bars = more CPU time
- Look for plugin names taking the most time
- "Minecraft" entries are vanilla server operations
- Compare "tick" sections to find what's slowing down your TPS
💡 Tip: Share the report link in our Discord and we can help interpret the results.
See also: Install Spark | Performance Guide
If you need help, join our Discord.
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