Adds the `node.perf.usertiming` trace events category for recording
usertiming marks and measures (e.g. `perf_hooks.performance.mark()`)
in the trace events timeline.
Adds the `node.perf.function` trace events category for recording
`perf_hooks.performance.timerify()` durations in the trace events
timeline.
PR-URL: https://github.com/nodejs/node/pull/18789
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Override the V8 TracingController to provide uv_hrtime based
timestamps. This allows tracing timestamps to be comparable with
process.hrtime timestamps.
Fixes: https://github.com/nodejs/node/issues/17349
PR-URL: https://github.com/nodejs/node/pull/18196
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Andreas Madsen <amwebdk@gmail.com>
Add missing "introduced_in" comments for alternative version links.
PR-URL: https://github.com/nodejs/node/pull/16741
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
This will allow trace event to record timing information for all
asynchronous operations that are observed by async_hooks.
PR-URL: https://github.com/nodejs/node/pull/15538
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
This commit adds support for trace-event tracing to Node.js. It provides
a mechanism to centralize tracing information generated by V8, Node
core, and userspace code. It includes:
- A trace writer responsible for serializing traces and cycling the
output files so that no individual file becomes to large.
- A buffer for aggregating traces to allow for batched flushes.
- An agent which initializes the tracing controller and ensures that
trace serialization is done on a separate thread.
- A set of macros for generating trace events.
- Tests and documentation.
Author: Raymond Kang <raymondksi@gmail.com>
Author: Kelvin Jin <kelvinjin@google.com>
Author: Matthew Loring <mattloring@google.com>
Author: Jason Ginchereau <jasongin@microsoft.com>
PR-URL: https://github.com/nodejs/node/pull/9304
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Josh Gavant <josh.gavant@outlook.com>
