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Attempt to reduce flake in BuggyBits sample app#8620

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bouwkast wants to merge 4 commits into
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steven/fix-buggy-bits-to-stop-flaking-all-the-time
Open

Attempt to reduce flake in BuggyBits sample app#8620
bouwkast wants to merge 4 commits into
masterfrom
steven/fix-buggy-bits-to-stop-flaking-all-the-time

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@bouwkast

@bouwkast bouwkast commented May 12, 2026 •
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Summary of changes

Attempts to fix some flake within the Buggy Bits sample app/integration tests by letting kestrel go and decide what port to use.

Reason for change

This was the cause of 3 flakes last release so trying to improve that.

Assumption: TestApplicationRunner was calling TcpPortProvider.GetOpenPort() to find a free port, then passing that port to the sample app via --urls. Between those two steps another process could grab the port, causing the sample app to fail to bind.

Implementation details

The fix is to let Kestrel pick the port itself. The sample apps now start up, ask Kestrel which port it actually bound, and log that URL. The test runner reads the URL back out of the sample app's stdout instead of deciding the port up front. The old hand-rolled port-probing and retry logic in BuggyBits is gone.

Test coverage

This is it 😃

Other details

@github-actions github-actions Bot added the area:profiler Issues related to the continous-profiler label May 12, 2026
@pr-commenter

pr-commenter Bot commented May 12, 2026 •
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Benchmarks

Benchmark execution time: 2026-05-13 21:07:02

Comparing candidate commit e818e1d in PR branch steven/fix-buggy-bits-to-stop-flaking-all-the-time with baseline commit cc6678f in branch master.

Some scenarios are present only in baseline or only in candidate runs. If you didn't create or remove some scenarios in your branch, this maybe a sign of crashed benchmarks 💥💥💥
Check Gitlab CI job log to find if any benchmark has crashed.

Scenarios present only in baseline:

  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_UpdateName_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_SetAttributes_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_SetAttributes_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_UpdateName_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_AddEvent_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_SetStatus_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_UpdateName_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_AddEvent_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_SetStatus_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_SetAttributes_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_AddEvent_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_SetAttributes_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_AddEvent_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_RecordException_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_SetStatus_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_GetContext_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_GetContext_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan net472
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_UpdateName_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_SetStatus_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_GetContext_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_RecordException_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_RecordException_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_SetStatus_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_SetStatus_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_GetContext_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_AddEvent_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_GetContext_Sampled netcoreapp3.1
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_AddEvent_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_SetAttributes_Sampled net472
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.ActivityBenchmark.StartSpan_GetContext_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_SetAttributes_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_UpdateName_Sampled net6.0
  • Benchmarks.OpenTelemetry.Api.Trace.TelemetrySpanBenchmark.StartSpan_UpdateName_Sampled netcoreapp3.1

Found 2 performance improvements and 3 performance regressions! Performance is the same for 49 metrics, 18 unstable metrics, 89 known flaky benchmarks, 37 flaky benchmarks without significant changes.

Explanation

This is an A/B test comparing a candidate commit's performance against that of a baseline commit. Performance changes are noted in the tables below as:

  • 🟩 = significantly better candidate vs. baseline
  • 🟥 = significantly worse candidate vs. baseline

We compute a confidence interval (CI) over the relative difference of means between metrics from the candidate and baseline commits, considering the baseline as the reference.

If the CI is entirely outside the configured SIGNIFICANT_IMPACT_THRESHOLD (or the deprecated UNCONFIDENCE_THRESHOLD), the change is considered significant.

Feel free to reach out to #apm-benchmarking-platform on Slack if you have any questions.

More details about the CI and significant changes

You can imagine this CI as a range of values that is likely to contain the true difference of means between the candidate and baseline commits.

CIs of the difference of means are often centered around 0%, because often changes are not that big:

---------------------------------(------|---^--------)-------------------------------->
                              -0.6%    0%  0.3%     +1.2%
                                 |          |        |
         lower bound of the CI --'          |        |
sample mean (center of the CI) -------------'        |
         upper bound of the CI ----------------------'

As described above, a change is considered significant if the CI is entirely outside the configured SIGNIFICANT_IMPACT_THRESHOLD (or the deprecated UNCONFIDENCE_THRESHOLD).

For instance, for an execution time metric, this confidence interval indicates a significantly worse performance:

----------------------------------------|---------|---(---------^---------)---------->
                                       0%        1%  1.3%      2.2%      3.1%
                                                  |   |         |         |
       significant impact threshold --------------'   |         |         |
                      lower bound of CI --------------'         |         |
       sample mean (center of the CI) --------------------------'         |
                      upper bound of CI ----------------------------------'

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TracerBenchmark.StartRootSpan net6.0

  • 🟩 allocated_mem [-144 bytes; -143 bytes] or [-9.188%; -9.180%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TracerBenchmark.StartSpan net6.0

  • 🟥 throughput [-30781.096op/s; -15346.353op/s] or [-16.839%; -8.395%]

scenario:Benchmarks.Trace.DbCommandBenchmark.ExecuteNonQuery net6.0

  • 🟥 throughput [-328288.655op/s; -298770.006op/s] or [-62.289%; -56.688%]

scenario:Benchmarks.Trace.HttpClientBenchmark.SendAsync net6.0

  • 🟥 throughput [-75024.807op/s; -68361.625op/s] or [-50.966%; -46.439%]
  • 🟩 execution_time [-31.841ms; -16.655ms] or [-15.801%; -8.265%]

Known flaky benchmarks

These benchmarks are marked as flaky and will not trigger a failure. Modify FLAKY_BENCHMARKS_REGEX to control which benchmarks are marked as flaky.

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan net6.0

  • unstable execution_time [-18.681ms; +2.402ms] or [-12.995%; +1.671%]
  • unstable throughput [-196.773op/s; +33527.349op/s] or [-0.108%; +18.390%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan netcoreapp3.1

  • unstable execution_time [-20.678ms; +13.924ms] or [-18.095%; +12.184%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_AddEvent_Sampled net6.0

  • unstable execution_time [+5.203ms; +22.778ms] or [+4.142%; +18.132%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_GetContext_Sampled net6.0

  • unstable execution_time [-13588.196µs; +13842.464µs] or [-9.138%; +9.309%]
  • unstable throughput [-4201.816op/s; +24107.395op/s] or [-2.687%; +15.416%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_GetContext_Sampled netcoreapp3.1

  • unstable execution_time [-36.259ms; -11.421ms] or [-31.969%; -10.070%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_SetAttributes_Sampled net6.0

  • unstable execution_time [+11.568ms; +41.443ms] or [+8.424%; +30.179%]
  • unstable throughput [-23697.509op/s; -8413.691op/s] or [-16.973%; -6.026%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_SetAttributes_Sampled netcoreapp3.1

  • unstable execution_time [+1.756ms; +40.569ms] or [+1.546%; +35.709%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_SetStatus_Sampled net6.0

  • unstable execution_time [-19.245ms; +7.262ms] or [-13.236%; +4.994%]
  • unstable throughput [+7769.165op/s; +31371.431op/s] or [+4.559%; +18.410%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_SetStatus_Sampled netcoreapp3.1

  • unstable execution_time [+26.377ms; +58.101ms] or [+28.960%; +63.790%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_UpdateName_Sampled net6.0

  • unstable execution_time [-29.302ms; -1.299ms] or [-17.171%; -0.761%]
  • unstable throughput [-25304.169op/s; -1914.055op/s] or [-14.522%; -1.098%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan net6.0

  • unstable execution_time [+22.944ms; +53.292ms] or [+17.873%; +41.513%]
  • unstable throughput [-40581.980op/s; -19763.763op/s] or [-22.877%; -11.141%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan netcoreapp3.1

  • unstable execution_time [+28.601ms; +59.347ms] or [+31.998%; +66.395%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_AddEvent_Sampled net6.0

  • 🟩 allocated_mem [-144 bytes; -143 bytes] or [-7.698%; -7.691%]
  • unstable execution_time [-36.681ms; +11.085ms] or [-21.910%; +6.621%]
  • unstable throughput [-13907.938op/s; +12849.833op/s] or [-9.962%; +9.205%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_AddEvent_Sampled netcoreapp3.1

  • unstable execution_time [-37.496ms; -12.839ms] or [-33.346%; -11.418%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_GetContext_Sampled net6.0

  • unstable execution_time [-62.253ms; -26.924ms] or [-34.314%; -14.841%]
  • unstable throughput [+6556.958op/s; +33709.138op/s] or [+4.633%; +23.817%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_GetContext_Sampled netcoreapp3.1

  • unstable execution_time [-86.379ms; -56.000ms] or [-55.279%; -35.838%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_RecordException_Sampled net6.0

  • 🟩 allocated_mem [-144 bytes; -143 bytes] or [-5.210%; -5.202%]
  • unstable execution_time [-34.835ms; -11.129ms] or [-25.733%; -8.221%]
  • unstable throughput [+5535.013op/s; +25629.938op/s] or [+4.993%; +23.122%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_SetAttributes_Sampled net6.0

  • unstable execution_time [+15.105ms; +33.534ms] or [+11.018%; +24.460%]
  • unstable throughput [-46637.324op/s; -20394.935op/s] or [-32.047%; -14.014%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_SetAttributes_Sampled netcoreapp3.1

  • unstable execution_time [+29.288ms; +59.414ms] or [+32.902%; +66.746%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_SetStatus_Sampled net6.0

  • 🟩 allocated_mem [-144 bytes; -143 bytes] or [-8.741%; -8.734%]
  • unstable execution_time [-48.484ms; -12.154ms] or [-28.395%; -7.118%]
  • unstable throughput [-5334.806op/s; +17659.197op/s] or [-3.868%; +12.805%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_SetStatus_Sampled netcoreapp3.1

  • unstable execution_time [-13.985ms; +21.931ms] or [-12.789%; +20.056%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_UpdateName_Sampled net6.0

  • 🟩 allocated_mem [-144 bytes; -143 bytes] or [-9.188%; -9.180%]
  • unstable execution_time [-36.474ms; +0.206ms] or [-23.450%; +0.132%]
  • unstable throughput [-3050.318op/s; +24866.688op/s] or [-1.934%; +15.767%]

scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_UpdateName_Sampled netcoreapp3.1

  • unstable execution_time [-34.277ms; -9.170ms] or [-30.850%; -8.253%]

scenario:Benchmarks.Trace.ActivityBenchmark.StartStopWithChild net472

  • 🟥 throughput [-8397.923op/s; -7469.565op/s] or [-9.957%; -8.857%]

scenario:Benchmarks.Trace.ActivityBenchmark.StartStopWithChild net6.0

  • unstable execution_time [-44.192ms; -12.576ms] or [-22.048%; -6.274%]
  • unstable throughput [-56065.825op/s; -43267.892op/s] or [-47.126%; -36.368%]

scenario:Benchmarks.Trace.ActivityBenchmark.StartStopWithChild netcoreapp3.1

  • unstable execution_time [-74.241ms; -46.135ms] or [-37.341%; -23.204%]

scenario:Benchmarks.Trace.AgentWriterBenchmark.WriteAndFlushEnrichedTraces net472

  • 🟥 execution_time [+303.887ms; +319.119ms] or [+150.799%; +158.358%]
  • 🟥 throughput [-55.909op/s; -43.173op/s] or [-10.059%; -7.768%]

scenario:Benchmarks.Trace.AgentWriterBenchmark.WriteAndFlushEnrichedTraces net6.0

  • unstable execution_time [+104.130ms; +122.414ms] or [+82.269%; +96.715%]

scenario:Benchmarks.Trace.AgentWriterBenchmark.WriteAndFlushEnrichedTraces netcoreapp3.1

  • 🟥 execution_time [+84.883ms; +91.875ms] or [+75.118%; +81.306%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.AllCycleMoreComplexBody net472

  • 🟥 allocated_mem [+1.308KB; +1.308KB] or [+27.528%; +27.540%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.AllCycleMoreComplexBody net6.0

  • 🟥 allocated_mem [+439 bytes; +440 bytes] or [+9.299%; +9.310%]
  • 🟩 execution_time [-78.012ms; -63.045ms] or [-36.434%; -29.444%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.AllCycleMoreComplexBody netcoreapp3.1

  • 🟥 allocated_mem [+1.272KB; +1.272KB] or [+27.500%; +27.510%]
  • 🟩 execution_time [-75.361ms; -58.283ms] or [-35.886%; -27.754%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.AllCycleSimpleBody net472

  • 🟥 allocated_mem [+1.307KB; +1.307KB] or [+105.743%; +105.758%]
  • 🟥 throughput [-273163.280op/s; -265877.030op/s] or [-27.891%; -27.147%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.AllCycleSimpleBody net6.0

  • 🟥 allocated_mem [+439 bytes; +440 bytes] or [+35.945%; +35.954%]
  • unstable execution_time [-103.691ms; -72.828ms] or [-46.242%; -32.478%]
  • unstable throughput [-185342.792op/s; -69149.037op/s] or [-19.800%; -7.387%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.AllCycleSimpleBody netcoreapp3.1

  • 🟥 allocated_mem [+1.272KB; +1.272KB] or [+105.288%; +105.304%]
  • unstable execution_time [-46.424ms; -22.745ms] or [-23.173%; -11.353%]
  • 🟥 throughput [-146777.737op/s; -129183.056op/s] or [-21.089%; -18.561%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.ObjectExtractorMoreComplexBody net6.0

  • 🟩 execution_time [-29.466ms; -10.898ms] or [-14.867%; -5.498%]
  • 🟥 throughput [-31309.557op/s; -16649.718op/s] or [-19.922%; -10.594%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.ObjectExtractorMoreComplexBody netcoreapp3.1

  • 🟩 execution_time [-34.295ms; -14.799ms] or [-17.485%; -7.545%]
  • 🟩 throughput [+10308.534op/s; +12986.048op/s] or [+8.212%; +10.345%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.ObjectExtractorSimpleBody net6.0

  • 🟩 execution_time [-76.462ms; -74.762ms] or [-37.805%; -36.964%]
  • 🟩 throughput [+373450.853op/s; +410379.379op/s] or [+12.452%; +13.684%]

scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.ObjectExtractorSimpleBody netcoreapp3.1

  • 🟩 execution_time [-44.583ms; -23.633ms] or [-20.551%; -10.894%]
  • 🟩 throughput [+158149.911op/s; +213547.397op/s] or [+6.277%; +8.476%]

scenario:Benchmarks.Trace.Asm.AppSecEncoderBenchmark.EncodeArgs net472

  • 🟥 execution_time [+300.944ms; +314.784ms] or [+150.371%; +157.287%]

scenario:Benchmarks.Trace.Asm.AppSecEncoderBenchmark.EncodeArgs net6.0

  • unstable execution_time [+176.283ms; +223.586ms] or [+88.900%; +112.755%]

scenario:Benchmarks.Trace.Asm.AppSecEncoderBenchmark.EncodeArgs netcoreapp3.1

  • unstable execution_time [+215.180ms; +260.555ms] or [+108.391%; +131.247%]

scenario:Benchmarks.Trace.Asm.AppSecEncoderBenchmark.EncodeLegacyArgs net472

  • 🟥 execution_time [+298.411ms; +311.904ms] or [+146.568%; +153.195%]

scenario:Benchmarks.Trace.Asm.AppSecEncoderBenchmark.EncodeLegacyArgs net6.0

  • 🟥 execution_time [+242.449ms; +259.269ms] or [+118.524%; +126.747%]

scenario:Benchmarks.Trace.Asm.AppSecEncoderBenchmark.EncodeLegacyArgs netcoreapp3.1

  • 🟥 execution_time [+273.731ms; +289.410ms] or [+136.811%; +144.647%]

scenario:Benchmarks.Trace.Asm.AppSecWafBenchmark.RunWafRealisticBenchmarkWithAttack net6.0

  • 🟥 execution_time [+19.551µs; +43.178µs] or [+6.242%; +13.785%]
  • 🟥 throughput [-405.001op/s; -206.172op/s] or [-12.625%; -6.427%]

scenario:Benchmarks.Trace.AspNetCoreBenchmark.SendRequest net472

  • 🟥 execution_time [+300.318ms; +301.243ms] or [+149.889%; +150.351%]

scenario:Benchmarks.Trace.AspNetCoreBenchmark.SendRequest net6.0

  • unstable execution_time [+359.449ms; +371.095ms] or [+390.556%; +403.210%]
  • 🟥 throughput [-6817.494op/s; -6660.563op/s] or [-56.020%; -54.731%]

scenario:Benchmarks.Trace.AspNetCoreBenchmark.SendRequest netcoreapp3.1

  • unstable execution_time [+312.222ms; +345.143ms] or [+237.067%; +262.064%]
  • 🟥 throughput [-1302.263op/s; -1084.225op/s] or [-12.607%; -10.496%]

scenario:Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark.WriteAndFlushEnrichedTraces net472

  • 🟥 execution_time [+299.087ms; +313.625ms] or [+137.517%; +144.202%]
  • 🟥 throughput [-683.490op/s; -666.693op/s] or [-61.931%; -60.409%]

scenario:Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark.WriteAndFlushEnrichedTraces net6.0

  • unstable execution_time [-48.377ms; +85.377ms] or [-20.616%; +36.384%]
  • 🟥 throughput [-705.184op/s; -614.278op/s] or [-47.036%; -40.973%]

scenario:Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark.WriteAndFlushEnrichedTraces netcoreapp3.1

  • 🟥 allocated_mem [+2.305KB; +2.308KB] or [+5.442%; +5.450%]
  • 🟥 execution_time [+339.601ms; +349.018ms] or [+203.121%; +208.753%]
  • 🟥 throughput [-727.172op/s; -692.996op/s] or [-50.632%; -48.252%]

scenario:Benchmarks.Trace.CharSliceBenchmark.OptimizedCharSlice netcoreapp3.1

  • 🟥 execution_time [+293.958µs; +303.498µs] or [+10.226%; +10.558%]
  • 🟥 throughput [-33.225op/s; -32.260op/s] or [-9.550%; -9.273%]

scenario:Benchmarks.Trace.CharSliceBenchmark.OriginalCharSlice net6.0

  • 🟩 execution_time [-223.914µs; -210.492µs] or [-11.343%; -10.663%]
  • 🟩 throughput [+60.576op/s; +64.878op/s] or [+11.958%; +12.807%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearch net472

  • 🟥 execution_time [+302.639ms; +315.556ms] or [+152.403%; +158.908%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearch net6.0

  • unstable execution_time [+193.435ms; +246.430ms] or [+96.931%; +123.486%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearch netcoreapp3.1

  • 🟥 execution_time [+298.601ms; +305.911ms] or [+150.005%; +153.677%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearchAsync net472

  • 🟥 execution_time [+305.801ms; +319.962ms] or [+153.563%; +160.674%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearchAsync net6.0

  • unstable execution_time [+232.511ms; +259.319ms] or [+114.966%; +128.222%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearchAsync netcoreapp3.1

  • 🟥 execution_time [+301.894ms; +309.523ms] or [+153.013%; +156.880%]

scenario:Benchmarks.Trace.GraphQLBenchmark.ExecuteAsync net472

  • 🟥 execution_time [+302.324ms; +313.080ms] or [+151.740%; +157.138%]

scenario:Benchmarks.Trace.GraphQLBenchmark.ExecuteAsync net6.0

  • 🟥 execution_time [+304.106ms; +312.198ms] or [+151.569%; +155.602%]
  • 🟩 throughput [+38602.519op/s; +49246.056op/s] or [+7.665%; +9.779%]

scenario:Benchmarks.Trace.GraphQLBenchmark.ExecuteAsync netcoreapp3.1

  • 🟥 execution_time [+299.035ms; +305.909ms] or [+148.767%; +152.187%]

scenario:Benchmarks.Trace.ILoggerBenchmark.EnrichedLog net6.0

  • 🟩 execution_time [-27.956ms; -13.117ms] or [-13.000%; -6.100%]
  • 🟥 throughput [-187448.977op/s; -163726.943op/s] or [-51.422%; -44.915%]

scenario:Benchmarks.Trace.ILoggerBenchmark.EnrichedLog netcoreapp3.1

  • unstable execution_time [-52.908ms; -24.588ms] or [-26.539%; -12.333%]

scenario:Benchmarks.Trace.Iast.StringAspectsBenchmark.StringConcatAspectBenchmark net6.0

  • 🟩 allocated_mem [-26.708KB; -26.686KB] or [-9.743%; -9.734%]
  • unstable execution_time [-85.965µs; -30.492µs] or [-16.991%; -6.027%]
  • 🟩 throughput [+153.725op/s; +352.936op/s] or [+7.671%; +17.612%]

scenario:Benchmarks.Trace.Iast.StringAspectsBenchmark.StringConcatAspectBenchmark netcoreapp3.1

  • 🟩 allocated_mem [-19.198KB; -19.179KB] or [-6.999%; -6.992%]
  • unstable execution_time [-10.364µs; +184.466µs] or [-1.796%; +31.967%]
  • unstable throughput [-144.019op/s; +182.631op/s] or [-8.228%; +10.434%]

scenario:Benchmarks.Trace.Iast.StringAspectsBenchmark.StringConcatBenchmark net472

  • 🟥 allocated_mem [+8.190KB; +8.196KB] or [+16.663%; +16.675%]

scenario:Benchmarks.Trace.Iast.StringAspectsBenchmark.StringConcatBenchmark net6.0

  • unstable execution_time [+3.244µs; +8.163µs] or [+7.667%; +19.295%]
  • 🟥 throughput [-3651.623op/s; -1652.263op/s] or [-15.372%; -6.956%]

scenario:Benchmarks.Trace.Iast.StringAspectsBenchmark.StringConcatBenchmark netcoreapp3.1

  • unstable execution_time [-13.935µs; -4.591µs] or [-21.619%; -7.123%]
  • unstable throughput [+1411.670op/s; +3392.106op/s] or [+8.661%; +20.812%]

scenario:Benchmarks.Trace.Log4netBenchmark.EnrichedLog net472

  • 🟥 execution_time [+304.082ms; +318.033ms] or [+153.700%; +160.751%]

scenario:Benchmarks.Trace.Log4netBenchmark.EnrichedLog net6.0

  • unstable execution_time [+260.873ms; +283.131ms] or [+132.784%; +144.113%]

scenario:Benchmarks.Trace.Log4netBenchmark.EnrichedLog netcoreapp3.1

  • 🟥 execution_time [+301.893ms; +306.629ms] or [+151.135%; +153.506%]

scenario:Benchmarks.Trace.RedisBenchmark.SendReceive net6.0

  • unstable execution_time [-73.704ms; -43.436ms] or [-36.841%; -21.711%]
  • unstable throughput [-185551.227op/s; -113253.243op/s] or [-35.121%; -21.436%]

scenario:Benchmarks.Trace.RedisBenchmark.SendReceive netcoreapp3.1

  • unstable execution_time [-31.080ms; -6.500ms] or [-15.754%; -3.295%]

scenario:Benchmarks.Trace.SerilogBenchmark.EnrichedLog net472

  • 🟥 execution_time [+300.526ms; +314.583ms] or [+149.785%; +156.791%]

scenario:Benchmarks.Trace.SerilogBenchmark.EnrichedLog net6.0

  • unstable execution_time [+266.649ms; +296.341ms] or [+133.899%; +148.809%]

scenario:Benchmarks.Trace.SerilogBenchmark.EnrichedLog netcoreapp3.1

  • 🟥 execution_time [+305.980ms; +312.772ms] or [+155.173%; +158.618%]

scenario:Benchmarks.Trace.SingleSpanAspNetCoreBenchmark.SingleSpanAspNetCore net472

  • 🟥 execution_time [+299.774ms; +300.633ms] or [+149.529%; +149.957%]
  • 🟩 throughput [+59852238.973op/s; +60176560.242op/s] or [+43.588%; +43.824%]

scenario:Benchmarks.Trace.SingleSpanAspNetCoreBenchmark.SingleSpanAspNetCore net6.0

  • unstable execution_time [+369.740ms; +386.698ms] or [+459.838%; +480.928%]
  • 🟥 throughput [-7402.284op/s; -7168.373op/s] or [-57.223%; -55.415%]

scenario:Benchmarks.Trace.SingleSpanAspNetCoreBenchmark.SingleSpanAspNetCore netcoreapp3.1

  • 🟥 execution_time [+296.837ms; +298.894ms] or [+148.056%; +149.082%]
  • 🟥 throughput [-18287215.300op/s; -17092371.745op/s] or [-8.100%; -7.571%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishScope net6.0

  • unstable execution_time [-93.169ms; -71.991ms] or [-45.632%; -35.260%]
  • unstable throughput [-93514.914op/s; +26131.802op/s] or [-8.731%; +2.440%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishScope netcoreapp3.1

  • 🟩 execution_time [-104.401ms; -99.726ms] or [-52.828%; -50.462%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishSpan net6.0

  • unstable execution_time [-78.815ms; -58.398ms] or [-41.063%; -30.425%]
  • unstable throughput [-136759.422op/s; +5169.287op/s] or [-10.585%; +0.400%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishSpan netcoreapp3.1

  • 🟩 execution_time [-30.830ms; -10.573ms] or [-15.147%; -5.195%]
  • 🟩 throughput [+74715.338op/s; +89510.588op/s] or [+7.420%; +8.890%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishTwoScopes net6.0

  • unstable execution_time [-89.241ms; -68.407ms] or [-44.566%; -34.162%]
  • unstable throughput [-47830.356op/s; +13917.518op/s] or [-8.685%; +2.527%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishTwoScopes netcoreapp3.1

  • unstable execution_time [-71.799ms; -45.363ms] or [-36.075%; -22.792%]

scenario:Benchmarks.Trace.TraceAnnotationsBenchmark.RunOnMethodBegin net6.0

  • unstable execution_time [-78.310ms; -50.834ms] or [-39.169%; -25.426%]
  • unstable throughput [-227322.132op/s; -88319.284op/s] or [-25.398%; -9.867%]

scenario:Benchmarks.Trace.TraceAnnotationsBenchmark.RunOnMethodBegin netcoreapp3.1

  • unstable execution_time [-31.199ms; -7.003ms] or [-15.845%; -3.557%]

Known flaky benchmarks without significant changes:

  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_AddEvent_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_AddEvent_Sampled netcoreapp3.1
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_GetContext_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_SetAttributes_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_SetStatus_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_UpdateName_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.ActivityBenchmark.StartSpan_UpdateName_Sampled netcoreapp3.1
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_AddEvent_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_GetContext_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_RecordException_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_RecordException_Sampled netcoreapp3.1
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_SetAttributes_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_SetStatus_Sampled net472
  • scenario:Benchmarks.OpenTelemetry.InstrumentedApi.Trace.TelemetrySpanBenchmark.StartSpan_UpdateName_Sampled net472
  • scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.ObjectExtractorMoreComplexBody net472
  • scenario:Benchmarks.Trace.Asm.AppSecBodyBenchmark.ObjectExtractorSimpleBody net472
  • scenario:Benchmarks.Trace.Asm.AppSecWafBenchmark.RunWafRealisticBenchmark net472
  • scenario:Benchmarks.Trace.Asm.AppSecWafBenchmark.RunWafRealisticBenchmark net6.0
  • scenario:Benchmarks.Trace.Asm.AppSecWafBenchmark.RunWafRealisticBenchmark netcoreapp3.1
  • scenario:Benchmarks.Trace.Asm.AppSecWafBenchmark.RunWafRealisticBenchmarkWithAttack net472
  • scenario:Benchmarks.Trace.Asm.AppSecWafBenchmark.RunWafRealisticBenchmarkWithAttack netcoreapp3.1
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OptimizedCharSlice net472
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OptimizedCharSlice net6.0
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OptimizedCharSliceWithPool net472
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OptimizedCharSliceWithPool net6.0
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OptimizedCharSliceWithPool netcoreapp3.1
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OriginalCharSlice net472
  • scenario:Benchmarks.Trace.CharSliceBenchmark.OriginalCharSlice netcoreapp3.1
  • scenario:Benchmarks.Trace.ILoggerBenchmark.EnrichedLog net472
  • scenario:Benchmarks.Trace.Iast.StringAspectsBenchmark.StringConcatAspectBenchmark net472
  • scenario:Benchmarks.Trace.RedisBenchmark.SendReceive net472
  • scenario:Benchmarks.Trace.SpanBenchmark.StartFinishScope net472
  • scenario:Benchmarks.Trace.SpanBenchmark.StartFinishSpan net472
  • scenario:Benchmarks.Trace.SpanBenchmark.StartFinishTwoScopes net472
  • scenario:Benchmarks.Trace.TraceAnnotationsBenchmark.RunOnMethodBegin net472

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dd-trace-dotnet-ci-bot Bot commented May 12, 2026 •
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Execution-Time Benchmarks Report ⏱️

Execution-time results for samples comparing This PR (8620) and master.

✅ No regressions detected - check the details below

Full Metrics Comparison

FakeDbCommand

Metric Master (Mean ± 95% CI) Current (Mean ± 95% CI) Change Status
.NET Framework 4.8 - Baseline
duration73.82 ± (74.41 - 75.16) ms74.36 ± (74.41 - 75.02) ms+0.7%✅⬆️
.NET Framework 4.8 - Bailout
duration77.30 ± (77.15 - 77.50) ms77.46 ± (77.38 - 77.74) ms+0.2%✅⬆️
.NET Framework 4.8 - CallTarget+Inlining+NGEN
duration1111.06 ± (1109.86 - 1118.09) ms1104.97 ± (1103.94 - 1110.74) ms-0.5%✅
.NET Core 3.1 - Baseline
process.internal_duration_ms22.41 ± (22.38 - 22.45) ms22.48 ± (22.43 - 22.52) ms+0.3%✅⬆️
process.time_to_main_ms84.05 ± (83.86 - 84.24) ms85.45 ± (85.19 - 85.71) ms+1.7%✅⬆️
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed10.92 ± (10.92 - 10.93) MB10.91 ± (10.90 - 10.91) MB-0.2%✅
runtime.dotnet.threads.count12 ± (12 - 12)12 ± (12 - 12)+0.0%✅
.NET Core 3.1 - Bailout
process.internal_duration_ms22.58 ± (22.53 - 22.64) ms22.26 ± (22.23 - 22.30) ms-1.4%✅
process.time_to_main_ms87.63 ± (87.31 - 87.94) ms85.63 ± (85.43 - 85.84) ms-2.3%✅
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed10.96 ± (10.96 - 10.97) MB10.94 ± (10.93 - 10.94) MB-0.2%✅
runtime.dotnet.threads.count13 ± (13 - 13)13 ± (13 - 13)+0.0%✅
.NET Core 3.1 - CallTarget+Inlining+NGEN
process.internal_duration_ms214.22 ± (213.21 - 215.23) ms215.13 ± (214.23 - 216.03) ms+0.4%✅⬆️
process.time_to_main_ms543.20 ± (542.02 - 544.38) ms546.19 ± (544.82 - 547.56) ms+0.6%✅⬆️
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed48.44 ± (48.41 - 48.48) MB48.61 ± (48.58 - 48.64) MB+0.3%✅⬆️
runtime.dotnet.threads.count28 ± (28 - 28)28 ± (28 - 28)-0.3%✅
.NET 6 - Baseline
process.internal_duration_ms21.70 ± (21.64 - 21.77) ms21.24 ± (21.21 - 21.28) ms-2.1%✅
process.time_to_main_ms76.38 ± (76.10 - 76.66) ms73.61 ± (73.43 - 73.78) ms-3.6%✅
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed10.64 ± (10.63 - 10.64) MB10.62 ± (10.61 - 10.62) MB-0.2%✅
runtime.dotnet.threads.count10 ± (10 - 10)10 ± (10 - 10)+0.0%✅
.NET 6 - Bailout
process.internal_duration_ms21.23 ± (21.19 - 21.27) ms21.57 ± (21.51 - 21.63) ms+1.6%✅⬆️
process.time_to_main_ms75.40 ± (75.22 - 75.58) ms77.21 ± (76.89 - 77.52) ms+2.4%✅⬆️
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed10.75 ± (10.75 - 10.76) MB10.74 ± (10.73 - 10.74) MB-0.2%✅
runtime.dotnet.threads.count11 ± (11 - 11)11 ± (11 - 11)+0.0%✅
.NET 6 - CallTarget+Inlining+NGEN
process.internal_duration_ms369.52 ± (367.60 - 371.45) ms370.80 ± (368.75 - 372.84) ms+0.3%✅⬆️
process.time_to_main_ms551.25 ± (550.10 - 552.40) ms551.94 ± (550.65 - 553.24) ms+0.1%✅⬆️
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed50.10 ± (50.07 - 50.12) MB50.06 ± (50.04 - 50.09) MB-0.1%✅
runtime.dotnet.threads.count28 ± (28 - 28)28 ± (28 - 28)-0.2%✅
.NET 8 - Baseline
process.internal_duration_ms19.42 ± (19.37 - 19.46) ms19.39 ± (19.35 - 19.43) ms-0.1%✅
process.time_to_main_ms72.91 ± (72.71 - 73.10) ms72.92 ± (72.74 - 73.11) ms+0.0%✅⬆️
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed7.69 ± (7.68 - 7.70) MB7.68 ± (7.67 - 7.68) MB-0.2%✅
runtime.dotnet.threads.count10 ± (10 - 10)10 ± (10 - 10)+0.0%✅
.NET 8 - Bailout
process.internal_duration_ms19.65 ± (19.60 - 19.69) ms19.32 ± (19.28 - 19.35) ms-1.7%✅
process.time_to_main_ms75.89 ± (75.62 - 76.16) ms73.79 ± (73.62 - 73.96) ms-2.8%✅
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed7.74 ± (7.73 - 7.74) MB7.72 ± (7.72 - 7.73) MB-0.2%✅
runtime.dotnet.threads.count11 ± (11 - 11)11 ± (11 - 11)+0.0%✅
.NET 8 - CallTarget+Inlining+NGEN
process.internal_duration_ms292.72 ± (290.58 - 294.85) ms294.25 ± (292.12 - 296.38) ms+0.5%✅⬆️
process.time_to_main_ms497.13 ± (496.05 - 498.21) ms498.41 ± (497.25 - 499.56) ms+0.3%✅⬆️
runtime.dotnet.exceptions.count0 ± (0 - 0)0 ± (0 - 0)+0.0%✅
runtime.dotnet.mem.committed37.04 ± (37.00 - 37.07) MB37.06 ± (37.04 - 37.09) MB+0.1%✅⬆️
runtime.dotnet.threads.count27 ± (27 - 27)27 ± (27 - 27)+0.0%✅

HttpMessageHandler

Metric Master (Mean ± 95% CI) Current (Mean ± 95% CI) Change Status
.NET Framework 4.8 - Baseline
duration197.57 ± (197.14 - 198.19) ms197.33 ± (196.99 - 197.85) ms-0.1%✅
.NET Framework 4.8 - Bailout
duration201.82 ± (201.64 - 202.64) ms200.76 ± (200.41 - 201.33) ms-0.5%✅
.NET Framework 4.8 - CallTarget+Inlining+NGEN
duration1190.05 ± (1190.97 - 1198.06) ms1188.13 ± (1188.78 - 1194.06) ms-0.2%✅
.NET Core 3.1 - Baseline
process.internal_duration_ms190.58 ± (190.08 - 191.09) ms192.75 ± (192.28 - 193.21) ms+1.1%✅⬆️
process.time_to_main_ms82.58 ± (82.32 - 82.83) ms83.79 ± (83.48 - 84.10) ms+1.5%✅⬆️
runtime.dotnet.exceptions.count3 ± (3 - 3)3 ± (3 - 3)+0.0%✅
runtime.dotnet.mem.committed16.17 ± (16.15 - 16.20) MB16.15 ± (16.13 - 16.18) MB-0.1%✅
runtime.dotnet.threads.count20 ± (20 - 20)20 ± (20 - 20)-1.1%✅
.NET Core 3.1 - Bailout
process.internal_duration_ms190.70 ± (190.26 - 191.14) ms191.95 ± (191.52 - 192.38) ms+0.7%✅⬆️
process.time_to_main_ms84.24 ± (84.01 - 84.47) ms84.20 ± (83.99 - 84.41) ms-0.1%✅
runtime.dotnet.exceptions.count3 ± (3 - 3)3 ± (3 - 3)+0.0%✅
runtime.dotnet.mem.committed16.09 ± (16.06 - 16.11) MB16.13 ± (16.10 - 16.16) MB+0.3%✅⬆️
runtime.dotnet.threads.count21 ± (20 - 21)21 ± (21 - 21)+0.3%✅⬆️
.NET Core 3.1 - CallTarget+Inlining+NGEN
process.internal_duration_ms384.10 ± (382.92 - 385.27) ms384.89 ± (383.49 - 386.28) ms+0.2%✅⬆️
process.time_to_main_ms533.08 ± (532.03 - 534.14) ms537.81 ± (536.69 - 538.92) ms+0.9%✅⬆️
runtime.dotnet.exceptions.count3 ± (3 - 3)3 ± (3 - 3)+0.0%✅
runtime.dotnet.mem.committed57.35 ± (57.23 - 57.47) MB57.51 ± (57.34 - 57.68) MB+0.3%✅⬆️
runtime.dotnet.threads.count30 ± (30 - 30)30 ± (30 - 30)+0.0%✅⬆️
.NET 6 - Baseline
process.internal_duration_ms195.82 ± (195.44 - 196.19) ms197.64 ± (197.25 - 198.03) ms+0.9%✅⬆️
process.time_to_main_ms71.58 ± (71.38 - 71.77) ms73.19 ± (72.95 - 73.44) ms+2.3%✅⬆️
runtime.dotnet.exceptions.count4 ± (4 - 4)4 ± (4 - 4)+0.0%✅
runtime.dotnet.mem.committed16.39 ± (16.36 - 16.42) MB16.41 ± (16.38 - 16.44) MB+0.1%✅⬆️
runtime.dotnet.threads.count19 ± (19 - 19)19 ± (19 - 19)+0.5%✅⬆️
.NET 6 - Bailout
process.internal_duration_ms195.26 ± (194.81 - 195.70) ms197.51 ± (197.15 - 197.87) ms+1.2%✅⬆️
process.time_to_main_ms72.95 ± (72.77 - 73.13) ms73.60 ± (73.39 - 73.80) ms+0.9%✅⬆️
runtime.dotnet.exceptions.count4 ± (4 - 4)4 ± (4 - 4)+0.0%✅
runtime.dotnet.mem.committed16.47 ± (16.44 - 16.50) MB16.46 ± (16.43 - 16.49) MB-0.0%✅
runtime.dotnet.threads.count20 ± (20 - 20)20 ± (20 - 20)+0.0%✅⬆️
.NET 6 - CallTarget+Inlining+NGEN
process.internal_duration_ms585.32 ± (582.71 - 587.93) ms584.24 ± (581.63 - 586.85) ms-0.2%✅
process.time_to_main_ms541.41 ± (540.39 - 542.42) ms544.27 ± (543.01 - 545.53) ms+0.5%✅⬆️
runtime.dotnet.exceptions.count4 ± (4 - 4)4 ± (4 - 4)+0.0%✅
runtime.dotnet.mem.committed61.19 ± (61.11 - 61.27) MB61.14 ± (61.06 - 61.22) MB-0.1%✅
runtime.dotnet.threads.count31 ± (31 - 31)31 ± (31 - 31)-0.1%✅
.NET 8 - Baseline
process.internal_duration_ms193.37 ± (192.87 - 193.86) ms195.90 ± (195.45 - 196.35) ms+1.3%✅⬆️
process.time_to_main_ms70.88 ± (70.67 - 71.09) ms71.69 ± (71.48 - 71.91) ms+1.1%✅⬆️
runtime.dotnet.exceptions.count4 ± (4 - 4)4 ± (4 - 4)+0.0%✅
runtime.dotnet.mem.committed11.73 ± (11.71 - 11.75) MB11.72 ± (11.70 - 11.73) MB-0.1%✅
runtime.dotnet.threads.count18 ± (18 - 18)18 ± (18 - 18)+0.4%✅⬆️
.NET 8 - Bailout
process.internal_duration_ms192.98 ± (192.53 - 193.44) ms195.01 ± (194.49 - 195.52) ms+1.0%✅⬆️
process.time_to_main_ms71.78 ± (71.55 - 72.00) ms72.84 ± (72.63 - 73.05) ms+1.5%✅⬆️
runtime.dotnet.exceptions.count4 ± (4 - 4)4 ± (4 - 4)+0.0%✅
runtime.dotnet.mem.committed11.79 ± (11.77 - 11.82) MB11.76 ± (11.73 - 11.79) MB-0.3%✅
runtime.dotnet.threads.count19 ± (19 - 19)19 ± (19 - 19)+0.2%✅⬆️
.NET 8 - CallTarget+Inlining+NGEN
process.internal_duration_ms512.29 ± (509.82 - 514.76) ms513.86 ± (511.14 - 516.58) ms+0.3%✅⬆️
process.time_to_main_ms490.47 ± (489.69 - 491.25) ms492.69 ± (491.64 - 493.74) ms+0.5%✅⬆️
runtime.dotnet.exceptions.count4 ± (4 - 4)4 ± (4 - 4)+0.0%✅
runtime.dotnet.mem.committed50.70 ± (50.66 - 50.75) MB50.60 ± (50.57 - 50.64) MB-0.2%✅
runtime.dotnet.threads.count29 ± (29 - 29)29 ± (29 - 30)+0.9%✅⬆️
Comparison explanation

Execution-time benchmarks measure the whole time it takes to execute a program, and are intended to measure the one-off costs. Cases where the execution time results for the PR are worse than latest master results are highlighted in **red**. The following thresholds were used for comparing the execution times:

  • Welch test with statistical test for significance of 5%
  • Only results indicating a difference greater than 5% and 5 ms are considered.

Note that these results are based on a single point-in-time result for each branch. For full results, see the dashboard.

Graphs show the p99 interval based on the mean and StdDev of the test run, as well as the mean value of the run (shown as a diamond below the graph).

Duration charts
FakeDbCommand (.NET Framework 4.8) 
gantt
    title Execution time (ms) FakeDbCommand (.NET Framework 4.8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (75ms)  : 70, 79
    master - mean (75ms)  : 69, 81

    section Bailout
    This PR (8620) - mean (78ms)  : 76, 79
    master - mean (77ms)  : 75, 79

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (1,107ms)  : 1059, 1156
    master - mean (1,114ms)  : 1053, 1175
Loading
FakeDbCommand (.NET Core 3.1) 
gantt
    title Execution time (ms) FakeDbCommand (.NET Core 3.1)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (115ms)  : 110, 120
    master - mean (113ms)  : 109, 117

    section Bailout
    This PR (8620) - mean (115ms)  : 112, 118
    master - mean (117ms)  : 111, 123

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (799ms)  : 765, 832
    master - mean (795ms)  : 773, 817
Loading
FakeDbCommand (.NET 6) 
gantt
    title Execution time (ms) FakeDbCommand (.NET 6)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (101ms)  : 98, 105
    master - mean (105ms)  : 99, 111

    section Bailout
    This PR (8620) - mean (105ms)  : 99, 112
    master - mean (103ms)  : 99, 107

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (956ms)  : 918, 993
    master - mean (953ms)  : 919, 987
Loading
FakeDbCommand (.NET 8) 
gantt
    title Execution time (ms) FakeDbCommand (.NET 8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (100ms)  : 97, 104
    master - mean (100ms)  : 96, 104

    section Bailout
    This PR (8620) - mean (101ms)  : 98, 104
    master - mean (104ms)  : 99, 108

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (821ms)  : 783, 860
    master - mean (821ms)  : 784, 857
Loading
HttpMessageHandler (.NET Framework 4.8) 
gantt
    title Execution time (ms) HttpMessageHandler (.NET Framework 4.8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (197ms)  : 192, 203
    master - mean (198ms)  : 192, 203

    section Bailout
    This PR (8620) - mean (201ms)  : 196, 205
    master - mean (202ms)  : 197, 208

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (1,191ms)  : 1157, 1226
    master - mean (1,195ms)  : 1142, 1247
Loading
HttpMessageHandler (.NET Core 3.1) 
gantt
    title Execution time (ms) HttpMessageHandler (.NET Core 3.1)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (286ms)  : 279, 292
    master - mean (282ms)  : 273, 291

    section Bailout
    This PR (8620) - mean (285ms)  : 279, 291
    master - mean (283ms)  : 278, 289

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (964ms)  : 942, 985
    master - mean (956ms)  : 939, 973
Loading
HttpMessageHandler (.NET 6) 
gantt
    title Execution time (ms) HttpMessageHandler (.NET 6)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (279ms)  : 273, 286
    master - mean (276ms)  : 270, 281

    section Bailout
    This PR (8620) - mean (280ms)  : 274, 285
    master - mean (277ms)  : 270, 283

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (1,161ms)  : 1123, 1200
    master - mean (1,156ms)  : 1117, 1195
Loading
HttpMessageHandler (.NET 8) 
gantt
    title Execution time (ms) HttpMessageHandler (.NET 8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8620) - mean (277ms)  : 266, 288
    master - mean (274ms)  : 265, 283

    section Bailout
    This PR (8620) - mean (278ms)  : 270, 286
    master - mean (275ms)  : 267, 283

    section CallTarget+Inlining+NGEN
    This PR (8620) - mean (1,038ms)  : 996, 1080
    master - mean (1,035ms)  : 990, 1080
Loading

@bouwkast bouwkast force-pushed the steven/fix-buggy-bits-to-stop-flaking-all-the-time branch from 391f809 to e818e1d Compare May 13, 2026 20:07
@bouwkast bouwkast changed the title Steven/fix buggy bits to stop flaking all the time Attempt to reduce flake in BuggyBits sample app May 13, 2026
@bouwkast bouwkast marked this pull request as ready for review May 14, 2026 13:11
@bouwkast bouwkast requested a review from a team as a code owner May 14, 2026 13:11
@bouwkast bouwkast mentioned this pull request May 28, 2026
Closed
@bouwkast bouwkast force-pushed the steven/fix-buggy-bits-to-stop-flaking-all-the-time branch from e818e1d to e33c5ec Compare May 28, 2026 15:17
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