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: 2026-02-06 09:17:17

Comparing candidate commit b20a43f in PR branch dubloom/process-tags-profiling with baseline commit f1d36ca in branch master.

Found 0 performance improvements and 2 performance regressions! Performance is the same for 27 metrics, 7 unstable metrics.

scenario:walk_stack/50

• 🟥 wall_time [+630.177ns; +639.778ns] or [+4.081%; +4.143%]

scenario:walk_stack/99

• 🟥 wall_time [+796.403ns; +800.331ns] or [+5.212%; +5.238%]

[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2026-02-06 09:58:44

Comparing candidate commit b20a43f in PR branch dubloom/process-tags-profiling with baseline commit f1d36ca in branch master.

Found 0 performance improvements and 5 performance regressions! Performance is the same for 184 metrics, 5 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization-opcache

• 🟥 execution_time [+3.286µs; +4.594µs] or [+3.195%; +4.466%]

scenario:SamplingRuleMatchingBench/benchRegexMatching1

• 🟥 execution_time [+85.050ns; +134.950ns] or [+7.405%; +11.749%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+117.828ns; +159.372ns] or [+10.279%; +13.903%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+86.538ns; +131.662ns] or [+7.472%; +11.369%]

scenario:SamplingRuleMatchingBench/benchRegexMatching4

• 🟥 execution_time [+95.075ns; +151.525ns] or [+8.270%; +13.180%]

[datadog-datadog-prod-us1]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

🧪 1024 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: 6985b0e00000000061629f50a6374bbc
tid: 6985b0e000000000
hexProcessTraceId: 61629f50a6374bbc
hexProcessSpanId: 4b5b39c1d7f92e72
processTraceId: 7017346338131495868
processSpanId: 5429997280440168050

phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:106

View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: b20a43f | 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 (f1d36ca) to head (b20a43f).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3609      +/-   ##
==========================================
- Coverage   62.21%   62.20%   -0.02%     
==========================================
  Files         141      141              
  Lines       13387    13387              
  Branches     1753     1753              
==========================================
- Hits         8329     8327       -2     
- Misses       4260     4263       +3     
+ Partials      798      797       -1     

see 1 file with indirect coverage changes

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[morrisonlevi]

Approved, but I have a question!