feat(profiling): process_tags on uploader

[dubloom]

Description

This PR implements this RFC for Profiling by adding a process tags field to the Uploader from the tracer.

Note that if process_tags are deactivated, the value passed to the profiler will be an empty string.

Here are an example in datadog:

(see entrypoint.basedir/entrypoint.name fields).

No tests were added at it does not seem to be possible right now (because of the interaction tracer <> profiler)

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[pr-commenter]

Benchmarks [ profiler ]

Benchmark execution time: 2026-02-12 11:28:18

Comparing candidate commit f3891e0 in PR branch dubloom/process-tags-profiling with baseline commit de9c414 in branch master.

Found 2 performance improvements and 0 performance regressions! Performance is the same for 28 metrics, 6 unstable metrics.

scenario:walk_stack/50

• 🟩 wall_time [-987.791ns; -978.470ns] or [-6.030%; -5.974%]

scenario:walk_stack/99

• 🟩 wall_time [-950.264ns; -945.902ns] or [-5.801%; -5.774%]

[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2026-02-12 12:09:06

Comparing candidate commit f3891e0 in PR branch dubloom/process-tags-profiling with baseline commit de9c414 in branch master.

Found 0 performance improvements and 5 performance regressions! Performance is the same for 186 metrics, 3 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization

• 🟥 execution_time [+3.639µs; +4.321µs] or [+3.592%; +4.266%]

scenario:SamplingRuleMatchingBench/benchRegexMatching1

• 🟥 execution_time [+51.036ns; +111.764ns] or [+4.342%; +9.509%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+72.855ns; +138.145ns] or [+6.261%; +11.871%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+87.467ns; +136.133ns] or [+7.547%; +11.746%]

scenario:SamplingRuleMatchingBench/benchRegexMatching4

• 🟥 execution_time [+77.233ns; +153.367ns] or [+6.694%; +13.292%]

[datadog-datadog-prod-us1]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

🧪 1027 Tests failed

❄️ Known flaky: Endpoints are sent() from com.datadog.appsec.php.integration.Symfony62Tests (Datadog) (Fix with Cursor)

Assertion failed: 

assert endpoints.size() == 6
       |         |      |
       |         1      false
       [com.datadog.appsec.php.TelemetryHelpers$Endpoint@4b8a0d03]

Assertion failed: 

assert endpoints.size() == 6
...

    testSearchPhpBinaries from integration.DDTrace\Tests\Integration\PHPInstallerTest (Fix with Cursor)

testSimplePushAndProcess from laravel-58-test.DDTrace\Tests\Integrations\Laravel\V5_8\QueueTest (Datadog) (Fix with Cursor)

Risky Test
phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:60

View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: f3891e0 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.11%. Comparing base (de9c414) to head (f3891e0).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3609   +/-   ##
=======================================
  Coverage   62.11%   62.11%           
=======================================
  Files         141      141           
  Lines       13387    13387           
  Branches     1753     1753           
=======================================
  Hits         8315     8315           
  Misses       4273     4273           
  Partials      799      799           

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[morrisonlevi]

Approved, but I have a question!