Used by the server to generate deterministic tokens.
600 ms
Every 12 chunks
Runs: 15s baseline streaming → 20s UI stall phase → 10s cooldown. Stops and auto-exports.
Recommended: Chrome DevTools → Network → 3G
Use the same profile for repeatable comparisons.
Use the same profile for repeatable comparisons.
Connects to the SSE stream and starts receiving deterministic chunks.
Disconnects from SSE cleanly and records RUN_STOP.
Blocks the main thread once (busy loop) for the configured duration.
Downloads the current trace JSON as trace_<run_id>.json.
run id —
elapsed 0.0s
chunks 0 / 0
stalls 0
long tasks 0
Long Task observer: checking…