SparkServer + client profiler — /spark profiler

About

The de facto profiler for modded MC servers. Run /spark profiler --timeout 60 to record a 60 s profile, upload to spark.lucko.me, then read the flame graph to find which mod / mixin is eating tick time. Indispensable for diagnosing TPS drops.

Things to do

• If TPS drops: /spark profiler --timeout 60
• Read the uploaded report → check top mod % time
• Use /spark tickmonitor for live tick spike alerts

Getting started

Server admins only. See /spark help.

Official documentation

• CurseForge — Spark
• spark.lucko.me docs