Adds process tags to profiler 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)

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[pr-commenter]

Benchmarks [ profiler ]

Benchmark execution time: 2026-01-30 18:10:06

Comparing candidate commit d12de78 in PR branch dubloom/process-tags-profiling with baseline commit ff8f987 in branch master.

Found 1 performance improvements and 0 performance regressions! Performance is the same for 30 metrics, 5 unstable metrics.

scenario:php-profiler-exceptions-with-profiler-and-timeline

• 🟩 cpu_user_time [-6.824ms; -1.674ms] or [-8.881%; -2.179%]

[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2026-01-30 18:51:46

Comparing candidate commit d12de78 in PR branch dubloom/process-tags-profiling with baseline commit ff8f987 in branch master.

Found 0 performance improvements and 4 performance regressions! Performance is the same for 186 metrics, 4 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization-opcache

• 🟥 execution_time [+3.209µs; +4.191µs] or [+3.094%; +4.041%]

scenario:SamplingRuleMatchingBench/benchRegexMatching1

• 🟥 execution_time [+45.076ns; +110.924ns] or [+3.846%; +9.465%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+63.989ns; +124.811ns] or [+5.509%; +10.746%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+56.010ns; +130.790ns] or [+4.733%; +11.051%]

[datadog-datadog-prod-us1]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

🧪 1026 Tests failed

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

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

testSimplePushAndProcess from laravel-8x-test.DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest::testSimplePushAndProcess
Test code or tested code printed unexpected output: spanLinksTraceId: 697cf25500000000bbac76e98f77e2ce
tid: 697cf25500000000
hexProcessTraceId: bbac76e98f77e2ce
hexProcessSpanId: 10557b48cd069aff
processTraceId: 13523314526593213134
processSpanId: 1176982430234876671

View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: d12de78 | 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 62.20%. Comparing base (ff8f987) to head (d12de78).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3609      +/-   ##
==========================================
- Coverage   62.24%   62.20%   -0.05%     
==========================================
  Files         141      141              
  Lines       13387    13387              
  Branches     1753     1753              
==========================================
- Hits         8333     8327       -6     
- Misses       4257     4263       +6     
  Partials      797      797              

see 2 files with indirect coverage changes

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