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doc: document trace-events category for dns requests

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As implemented in https://github.com/nodejs/node/pull/21840, dns can
emit trace events when the category is enabled. This PR just add
it to the documentation.

PR-URL: https://github.com/nodejs/node/pull/28100
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
vmarchaud
2019-06-06 14:45:02 +02:00
committed by Rich Trott
parent ee167877ad
commit f7ffa52312
1 changed files with 1 additions and 0 deletions
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doc/api/tracing.md
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@@ -20,6 +20,7 @@ The available categories are:
* `node.bootstrap` - Enables capture of Node.js bootstrap milestones.
* `node.console` - Enables capture of `console.time()` and `console.count()`
output.
* `node.dns.native` - Enables capture of trace data for DNS queries.
* `node.environment` - Enables capture of Node.js Environment milestones.
* `node.fs.sync` - Enables capture of trace data for file system sync methods.
* `node.perf` - Enables capture of [Performance API] measurements.