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doc: update trace events categories description

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PR-URL: https://github.com/nodejs/node/pull/20092
Fixes: https://github.com/nodejs/node/issues/16315
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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Beni von Cheni 2018-04-17 00:40:22 -04:00 committed by Vse Mozhet Byt
parent 1c66a10a0c
commit 8b012e1464
1 changed files with 7 additions and 3 deletions
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doc/api/tracing.md
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@ -13,15 +13,17 @@ a list of comma-separated category names.
The available categories are: The available categories are:
* `node` * `node` - An empty placeholder.
* `node.async_hooks` - Enables capture of detailed async_hooks trace data. * `node.async_hooks` - Enables capture of detailed [async_hooks] trace data.
The [async_hooks] events have a unique `asyncId` and a special triggerId
`triggerAsyncId` property.
* `node.bootstrap` - Enables capture of Node.js bootstrap milestones. * `node.bootstrap` - Enables capture of Node.js bootstrap milestones.
* `node.perf` - Enables capture of [Performance API] measurements. * `node.perf` - Enables capture of [Performance API] measurements.
* `node.perf.usertiming` - Enables capture of only Performance API User Timing * `node.perf.usertiming` - Enables capture of only Performance API User Timing
measures and marks. measures and marks.
* `node.perf.timerify` - Enables capture of only Performance API timerify * `node.perf.timerify` - Enables capture of only Performance API timerify
measurements. measurements.
* `v8` * `v8` - The [V8] events are GC, compiling, and execution related.
By default the `node`, `node.async_hooks`, and `v8` categories are enabled. By default the `node`, `node.async_hooks`, and `v8` categories are enabled.
@ -193,3 +195,5 @@ console.log(trace_events.getEnabledCategories());
``` ```
[Performance API]: perf_hooks.html [Performance API]: perf_hooks.html
[V8]: v8.html
[async_hooks]: async_hooks.html