Spark profile analyzer

Paste a spark link or drop a .sparkprofile file. You get a plain list of settings to change, sorted by what helps most. Your profile is read in your browser and never uploaded to us.

How do I make a profile?
  1. While the lag is happening, run /spark profiler start --timeout 300 in the console.
  2. Wait the 5 minutes. Spark prints a link when it stops.
  3. Paste that link above.

Ping spikes, or a fork that ticks worlds in parallel (Leaf and similar)? Add --thread * so the network and world threads are included.

Lag spikes from garbage collection? Run /spark profiler start --alloc --timeout 300 to see what creates the garbage.