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As node requires a tracing controller to be initialized embedders need
access to the TraceEventHelper so that we can actually set the tracing
controller.
Refs: https://github.com/electron/electron/commit/0e5b6f93000e4718c9e35332ddbd0f6b76cdd585/#diff-89b287b2edd0a02dddae60cb26157f47
PR-URL: https://github.com/nodejs/node/pull/28724
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
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Use actual atomic operations instead of things that are
named as if they were atomics, but aren’t.
Refs: https://github.com/nodejs/node/issues/26100
PR-URL: https://github.com/nodejs/node/pull/26156
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Yang Guo <yangguo@chromium.org>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
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Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.
PR-URL: https://github.com/nodejs/node/pull/20900
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
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Add support for metadata events. At this point they are added to the
main buffer. Emit a metadata event for the main thread.
PR-URL: https://github.com/nodejs/node/pull/20757
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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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>
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PR-URL: https://github.com/nodejs/node/pull/17640
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
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PR-URL: https://github.com/nodejs/node/pull/17373
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
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This commit makes the macro line continuations line up.
PR-URL: https://github.com/nodejs/node/pull/15750
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
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PR-URL: https://github.com/nodejs/node/pull/15682
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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PR-URL: https://github.com/nodejs/node/pull/15583
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Node.js currently uses the V8 implementation of the DefaultPlatform
which schedules VM tasks on a V8 managed thread pool. Since the Node.js
event loop is not aware of these tasks, the Node.js process may exit
while there are outstanding VM tasks. This will become problematic once
asynchronous wasm compilation lands in V8.
This PR introduces a Node.js specific implementation of the v8::Platform
on top of libuv so that the event loop is aware of outstanding VM tasks.
PR-URL: https://github.com/nodejs/node/pull/14001
Fixes: https://github.com/nodejs/node/issues/3665
Fixes: https://github.com/nodejs/node/issues/8496
Fixes: https://github.com/nodejs/node/issues/12980
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
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V8 modified the platform API to accept a tracing controller at platform
creation time that is required to be present for the lifetime of the
platform if tracing will every be enabled. This will simplify the
implementation of a v8::Platform subclass for node.
PR-URL: https://github.com/nodejs/node/pull/14001
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
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PR-URL: https://github.com/nodejs/node/pull/13719
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
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src/tracing/trace_event.h was updated by applying the following changes:
1) Include src/tracing/trace_event_common.h instead of the one from v8
base.
2) Replace all instances of base::Atomic with intptr_t (trace events can
only be generated from the main thread for now).
3) Replace instances of V8_INLINE with inline.
4) Eliminate uses of DCHECK.
5) Eliminate uses of V8_UNLIKELY, the branch predictor should be good
enough alone.
6) Change the namespace used by trace_event.h from v8::internal::tracing
to node::tracing.
7) Remove CallStatsScopedTracer class and related macros (they rely on
V8 implementation details).
8) Change ConvertableToTraceFormat to v8::ConvertableToTraceFormat.
9) Add function "static void SetCurrentPlatform(v8::Platform*
platform);" to the declaration of TraceEventHelper.
PR-URL: https://github.com/nodejs/node/pull/12127
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
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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>
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