Trace Event provides a mechanism to centralize tracing information generated by V8, Node core, and userspace code.
Tracing can be enabled by passing the --trace-events-enabled flag when starting a Node.js application.
The set of categories for which traces are recorded can be specified using the --trace-event-categories flag followed by a list of comma separated category names. By default the node and v8 categories are enabled.
node --trace-events-enabled --trace-event-categories v8,node server.js
Running Node.js with tracing enabled will produce log files that can be opened in the chrome://tracing tab of Chrome.
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https://nodejs.org/dist/latest-v7.x/docs/api/tracing.html