Use AsyncContextFrame for storing profiler sampling context #5743
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Overall package sizeSelf size: 9.63 MB Dependency sizes| name | version | self size | total size | |------|---------|-----------|------------| | @datadog/libdatadog | 0.7.0 | 35.02 MB | 35.02 MB | | @datadog/native-appsec | 8.5.2 | 19.33 MB | 19.34 MB | | @datadog/native-iast-taint-tracking | 4.0.0 | 11.72 MB | 11.73 MB | | @datadog/pprof | 5.9.0 | 9.77 MB | 10.14 MB | | @opentelemetry/core | 1.30.1 | 908.66 kB | 7.16 MB | | protobufjs | 7.5.3 | 2.95 MB | 5.6 MB | | @datadog/wasm-js-rewriter | 4.0.1 | 2.85 MB | 3.58 MB | | @datadog/native-metrics | 3.1.1 | 1.02 MB | 1.43 MB | | @opentelemetry/api | 1.8.0 | 1.21 MB | 1.21 MB | | import-in-the-middle | 1.14.2 | 122.36 kB | 850.93 kB | | source-map | 0.7.4 | 226 kB | 226 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | lru-cache | 7.18.3 | 133.92 kB | 133.92 kB | | pprof-format | 2.1.0 | 111.69 kB | 111.69 kB | | @datadog/sketches-js | 2.1.1 | 109.9 kB | 109.9 kB | | lodash.sortby | 4.7.0 | 75.76 kB | 75.76 kB | | ignore | 5.3.2 | 53.63 kB | 53.63 kB | | istanbul-lib-coverage | 3.2.2 | 34.37 kB | 34.37 kB | | rfdc | 1.4.1 | 27.15 kB | 27.15 kB | | @isaacs/ttlcache | 1.4.1 | 25.2 kB | 25.2 kB | | dc-polyfill | 0.1.9 | 25.11 kB | 25.11 kB | | tlhunter-sorted-set | 0.1.0 | 24.94 kB | 24.94 kB | | shell-quote | 1.8.3 | 23.74 kB | 23.74 kB | | limiter | 1.1.5 | 23.17 kB | 23.17 kB | | retry | 0.13.1 | 18.85 kB | 18.85 kB | | semifies | 1.0.0 | 15.84 kB | 15.84 kB | | jest-docblock | 29.7.0 | 8.99 kB | 12.76 kB | | crypto-randomuuid | 1.0.0 | 11.18 kB | 11.18 kB | | ttl-set | 1.0.0 | 4.61 kB | 9.69 kB | | mutexify | 1.4.0 | 5.71 kB | 8.74 kB | | path-to-regexp | 0.1.12 | 6.6 kB | 6.6 kB | | koalas | 1.0.2 | 6.47 kB | 6.47 kB | | module-details-from-path | 1.0.4 | 3.96 kB | 3.96 kB |🤖 This report was automatically generated by heaviest-objects-in-the-universe |
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #5743 +/- ##
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- Coverage 79.56% 74.62% -4.95%
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Files 476 444 -32
Lines 20317 19489 -828
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- Hits 16166 14544 -1622
- Misses 4151 4945 +794 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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Datadog ReportBranch report: ✅ 0 Failed, 1255 Passed, 0 Skipped, 20m 31.06s Total Time |
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What does this PR do?
Implements the dd-trace-js bits for using
AsyncContextFrameto store the profiler sampling context. The pprof-nodejs bits shipped in DataDog/pprof-nodejs#186.Motivation
With
AsyncContextFrameavailable in Node 24 by default, we can use it to store the profiler's sampling context (tracing information we want to incorporate into profiler samples.) This then allows us to no longer use theasync_hooks.createHookbeforecallbacks. These callbacks will be deprecated in a future version of Node.js so it is vital we migrate away from using them. Enabling the callbacks also triggers deoptimizations, and we need to execute a callback on every single context switch so their use is generally detrimental to performance.Additional Notes
The integration tests will use the new functionality on Node.js 23 or later. Async context frames are available from Node.js 22.7.0 so we could eventually extend the compatibility downwards, but for that we need pprof-nodejs to also support this mode for versions earlier than 23.
Currently, the PR reverts three commits that disable async context frame (similar to #5726) as this feature only works with async context frames enabled.
Jira: PROF-11771