Submit worker count. Do not route metrics thru ext

[cataphract]

Description

• Appsec helper submits per-service worker count
• This all the other existing telemetry metrics that the helper generates are now submitted directly to sidecar, rather than going through the extension.

See also DataDog/libdatadog#1400

[pr-commenter]

Benchmarks [ appsec ]

Benchmark execution time: 2026-01-28 11:24:05

Comparing candidate commit a9545e1 in PR branch glopes/sidecar-ffi-tel-metrics with baseline commit 5456721 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 12 metrics, 0 unstable metrics.

[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 (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Laravel\V5_8\QueueTest::testSimplePushAndProcess
Test code or tested code printed unexpected output: spanLinksTraceId: 6979eb210000000040a82342617c5dbd
tid: 6979eb2100000000
hexProcessTraceId: 40a82342617c5dbd
hexProcessSpanId: f5fb3f906252d6cf
processTraceId: 4659012582525132221
processSpanId: 17724830647804155599

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

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: 6979eb2b0000000065c3b69ae226b23e
tid: 6979eb2b00000000
hexProcessTraceId: 65c3b69ae226b23e
hexProcessSpanId: 977c721ba7545df8
processTraceId: 7332905394624705086
processSpanId: 10915725059936247288

View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: a9545e1 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[codecov-commenter]

Codecov Report

❌ Patch coverage is 61.93548% with 118 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.12%. Comparing base (5456721) to head (a9545e1).

Files with missing lines	Patch %	Lines
appsec/src/helper/service.cpp	55.79%	50 Missing and 11 partials ⚠️
appsec/src/helper/service.hpp	64.40%	16 Missing and 5 partials ⚠️
appsec/src/helper/runner.cpp	0.00%	14 Missing ⚠️
appsec/src/helper/ffi.hpp	67.74%	7 Missing and 3 partials ⚠️
appsec/src/helper/client.cpp	75.00%	2 Missing and 3 partials ⚠️
appsec/src/helper/client.hpp	87.50%	2 Missing and 2 partials ⚠️
appsec/src/helper/sidecar_settings.hpp	0.00%	3 Missing ⚠️

❌ Your patch status has failed because the patch coverage (61.93%) is below the target coverage (90.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3530      +/-   ##
==========================================
+ Coverage   61.92%   62.12%   +0.19%     
==========================================
  Files         140      141       +1     
  Lines       13312    13387      +75     
  Branches     1762     1753       -9     
==========================================
+ Hits         8244     8317      +73     
+ Misses       4277     4270       -7     
- Partials      791      800       +9     

Files with missing lines	Coverage Δ
appsec/src/extension/commands/client_init.c	83.10% <ø> (+2.18%)	⬆️
appsec/src/extension/commands/request_shutdown.c	77.46% <100.00%> (+0.10%)	⬆️
appsec/src/extension/commands_helpers.c	69.23% <ø> (-0.47%)	⬇️
appsec/src/helper/engine.hpp	100.00% <100.00%> (ø)
appsec/src/helper/network/proto.hpp	93.22% <ø> (ø)
appsec/src/helper/remote_config/client.cpp	14.55% <100.00%> (-4.34%)	⬇️
appsec/src/helper/remote_config/client.hpp	100.00% <ø> (ø)
appsec/src/helper/runner.hpp	0.00% <ø> (ø)
appsec/src/helper/subscriber/waf.cpp	71.53% <100.00%> (+0.12%)	⬆️
appsec/src/helper/telemetry.hpp	47.72% <ø> (ø)
... and 7 more

... and 1 file with indirect coverage changes

---

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[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2026-01-28 11:43:52

Comparing candidate commit a9545e1 in PR branch glopes/sidecar-ffi-tel-metrics with baseline commit 5456721 in branch master.

Found 1 performance improvements and 6 performance regressions! Performance is the same for 185 metrics, 2 unstable metrics.

scenario:ComposerTelemetryBench/benchTelemetryParsing

• 🟩 execution_time [-1213.197ns; -386.803ns] or [-9.629%; -3.070%]

scenario:MessagePackSerializationBench/benchMessagePackSerialization

• 🟥 execution_time [+4.718µs; +5.762µs] or [+4.675%; +5.710%]

scenario:MessagePackSerializationBench/benchMessagePackSerialization-opcache

• 🟥 execution_time [+6.315µs; +8.605µs] or [+6.366%; +8.675%]

scenario:SamplingRuleMatchingBench/benchRegexMatching1

• 🟥 execution_time [+30.640ns; +103.560ns] or [+2.563%; +8.661%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+78.940ns; +150.260ns] or [+6.749%; +12.847%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+64.528ns; +131.472ns] or [+5.433%; +11.070%]

scenario:SamplingRuleMatchingBench/benchRegexMatching4

• 🟥 execution_time [+86.319ns; +139.881ns] or [+7.456%; +12.083%]