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Patrick Buckley
41e7d5b7d7
New /perf/livepass.html mounts the real InteractivePane at production scroll geometry and drives production-shaped SSE events through handleEvent/replayHistory in real time (no virtual-time budget, no forced reduced-motion — both corrupt the measurement), reporting: replayHistory wall time at N messages, per-turn live-storm cost on top of that transcript, tool_output_chunk throughput, busy/idle churn, heap + node + agent-card counts across repeated replay cycles (the detached-DOM leak probe), and longtask counts. The --perf runner builds, serves, and launches headless Chrome with --js-flags=--expose-gc and --enable-precise-memory-info so heap numbers are real floors; the page POSTs its JSON report to /perf/report. Reports carry a per-attempt run token the runner validates, so a straggler POST from a killed prior attempt cannot be misattributed to the next size, and the wait loop polls the Chrome process so a sandbox startup failure bails to the --no-sandbox fallback in seconds instead of burning the full timeout.