feat(profiler): AsyncContextFrame used by profiler with Node.js 22+, on by default

[szegedi]

What does this PR do?

• Updates pprof-nodejs to 5.13.1, which allows enabling ACF sampling context already with Node.js 22
• Lowers the requirement to enable ACF sampling context to Node.js 22.9.0.
• When ACF is available on Linux and macOS, use it by default for profiling sampling context. In practical terms, this means either:
  • Node.js 24+ without explicit --no-async-context-frame command line switch, or
  • Node.js 22.9.0-23.99 with explicit --experimental-async-context-frame command line switch.

Motivation

ACF works well starting with Node.js 22.9.0. Also, it is time we turn it on by default where possible, as it has lower overhead and has been tested for long time internally.

[codecov]

Codecov Report

❌ Patch coverage is 28.57143% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.60%. Comparing base (2a5063a) to head (f6ff369).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
packages/dd-trace/src/profiling/config.js	28.57%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7119      +/-   ##
==========================================
- Coverage   84.78%   84.60%   -0.18%     
==========================================
  Files         521      521              
  Lines       22149    22157       +8     
==========================================
- Hits        18778    18746      -32     
- Misses       3371     3411      +40     

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[github-actions]

Overall package size

Self size: 4.35 MB
Deduped: 5.24 MB
No deduping: 5.24 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | import-in-the-middle | 1.15.0 | 127.66 kB | 856.24 kB | | dc-polyfill | 0.1.10 | 26.73 kB | 26.73 kB |

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[datadog-official]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

❄️ 2 New flaky tests detected

esm with @azure/functions >=4 (4.0.0) propagates amqp messages through an event hub with a cardinality of one from with @azure/functions >=4 (4.0.0) (Datadog) (Fix with Cursor)

Process exited with status code 1.

Error: Process exited with status code 1.
    at ChildProcess.<anonymous> (packages/datadog-plugin-azure-functions/test/integration-test/eventhubs-test/eventhubs.spec.js:349:18)
    at ChildProcess.emit (node:events:524:28)
    at ChildProcess._handle.onexit (node:internal/child_process:293:12)
    at Process.callbackTrampoline (node:internal/async_hooks:130:17)

esm with @azure/functions >=4 (4.0.0) propagates eventdata through an event hub with a cardinality of one from with @azure/functions >=4 (4.0.0) (Datadog) (Fix with Cursor)

Timeout of 60000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/home/runner/work/dd-trace-js/dd-trace-js/packages/datadog-plugin-azure-functions/test/integration-test/eventhubs-test/eventhubs.spec.js)

Error: Timeout of 60000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (/home/runner/work/dd-trace-js/dd-trace-js/packages/datadog-plugin-azure-functions/test/integration-test/eventhubs-test/eventhubs.spec.js)
    at listOnTimeout (node:internal/timers:581:17)
    at process.processTimers (node:internal/timers:519:7)

ℹ️ Info

🧪 All tests passed

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 4e2b086 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[BridgeAR]

The linter is unhappy 😅

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-12-17 14:14:50

Comparing candidate commit 4e2b086 in PR branch szegedi/profiler-async-context-on-by-default with baseline commit 2a5063a in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 290 metrics, 30 unstable metrics.