Q72: How does the --trace-events-enabled flag assist in deep performance profiling?
Launching Node.js with --trace-events-enabled records performance events across V8, Libuv, and Node.js core modules into log files. These trace log files can be imported directly into Chrome DevTools (chrome://tracing) or Speedscope to inspect detailed thread execution timelines, garbage collection pauses, and async task durations.
Key Takeaways
--trace-events-enabledoutputs low-level execution trace logs.- Trace files can be rendered in Chrome DevTools to visually inspect V8 and thread pool performance.
Knowledge Check
Which Chrome DevTools panel or URL is used to visually inspect trace event log files generated by Node.js?