Anna/attempt repro apms 19196 by anna-git · Pull Request #8434 · DataDog/dd-trace-dotnet

anna-git · 2026-04-09T14:32:42Z

Summary of changes

Repro case for #8428

Reason for change

Implementation details

Test coverage

Other details

dd-trace-dotnet-ci-bot · 2026-04-09T15:36:16Z

Execution-Time Benchmarks Report ⏱️

Execution-time results for samples comparing This PR (8434) 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
duration	77.47 ± (77.49 - 77.91) ms	78.34 ± (78.26 - 78.63) ms	+1.1%	✅⬆️
.NET Framework 4.8 - Bailout
duration	82.36 ± (81.97 - 82.41) ms	82.81 ± (82.80 - 83.22) ms	+0.6%	✅⬆️
.NET Framework 4.8 - CallTarget+Inlining+NGEN
duration	1129.27 ± (1126.73 - 1132.54) ms	1131.62 ± (1131.25 - 1136.43) ms	+0.2%	✅⬆️
.NET Core 3.1 - Baseline
process.internal_duration_ms	23.57 ± (23.50 - 23.63) ms	23.78 ± (23.72 - 23.84) ms	+0.9%	✅⬆️
process.time_to_main_ms	91.16 ± (90.95 - 91.38) ms	91.66 ± (91.40 - 91.92) ms	+0.5%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.90 ± (10.90 - 10.91) MB	10.93 ± (10.93 - 10.93) MB	+0.3%	✅⬆️
runtime.dotnet.threads.count	12 ± (12 - 12)	12 ± (12 - 12)	+0.0%	✅
.NET Core 3.1 - Bailout
process.internal_duration_ms	23.75 ± (23.69 - 23.81) ms	23.70 ± (23.63 - 23.78) ms	-0.2%	✅
process.time_to_main_ms	93.09 ± (92.87 - 93.32) ms	93.47 ± (93.25 - 93.68) ms	+0.4%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.93 ± (10.93 - 10.94) MB	10.96 ± (10.96 - 10.96) MB	+0.2%	✅⬆️
runtime.dotnet.threads.count	13 ± (13 - 13)	13 ± (13 - 13)	+0.0%	✅
.NET Core 3.1 - CallTarget+Inlining+NGEN
process.internal_duration_ms	238.43 ± (237.21 - 239.65) ms	238.08 ± (236.97 - 239.19) ms	-0.1%	✅
process.time_to_main_ms	555.62 ± (554.28 - 556.96) ms	556.82 ± (555.61 - 558.04) ms	+0.2%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	48.20 ± (48.17 - 48.24) MB	48.34 ± (48.30 - 48.37) MB	+0.3%	✅⬆️
runtime.dotnet.threads.count	28 ± (28 - 28)	28 ± (28 - 29)	+0.7%	✅⬆️
.NET 6 - Baseline
process.internal_duration_ms	22.28 ± (22.23 - 22.34) ms	22.27 ± (22.22 - 22.32) ms	-0.0%	✅
process.time_to_main_ms	78.96 ± (78.76 - 79.17) ms	79.19 ± (78.97 - 79.41) ms	+0.3%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.62 ± (10.62 - 10.62) MB	10.63 ± (10.63 - 10.63) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	10 ± (10 - 10)	10 ± (10 - 10)	+0.0%	✅
.NET 6 - Bailout
process.internal_duration_ms	22.28 ± (22.23 - 22.33) ms	22.01 ± (21.95 - 22.07) ms	-1.2%	✅
process.time_to_main_ms	80.56 ± (80.35 - 80.76) ms	79.54 ± (79.32 - 79.75) ms	-1.3%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.73 ± (10.73 - 10.73) MB	10.74 ± (10.74 - 10.75) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	11 ± (11 - 11)	11 ± (11 - 11)	+0.0%	✅
.NET 6 - CallTarget+Inlining+NGEN
process.internal_duration_ms	383.08 ± (380.98 - 385.18) ms	385.44 ± (383.28 - 387.61) ms	+0.6%	✅⬆️
process.time_to_main_ms	555.89 ± (554.77 - 557.00) ms	558.12 ± (556.82 - 559.42) ms	+0.4%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	49.91 ± (49.87 - 49.94) MB	49.94 ± (49.91 - 49.97) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	28 ± (28 - 28)	28 ± (28 - 28)	+0.0%	✅⬆️
.NET 8 - Baseline
process.internal_duration_ms	20.70 ± (20.65 - 20.75) ms	20.52 ± (20.47 - 20.57) ms	-0.9%	✅
process.time_to_main_ms	78.41 ± (78.21 - 78.60) ms	78.38 ± (78.18 - 78.58) ms	-0.0%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	7.69 ± (7.68 - 7.70) MB	7.69 ± (7.68 - 7.69) MB	-0.0%	✅
runtime.dotnet.threads.count	10 ± (10 - 10)	10 ± (10 - 10)	+0.0%	✅
.NET 8 - Bailout
process.internal_duration_ms	20.79 ± (20.72 - 20.86) ms	20.58 ± (20.52 - 20.65) ms	-1.0%	✅
process.time_to_main_ms	80.09 ± (79.89 - 80.28) ms	79.30 ± (79.09 - 79.52) ms	-1.0%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	7.74 ± (7.73 - 7.74) MB	7.75 ± (7.74 - 7.75) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	11 ± (11 - 11)	11 ± (11 - 11)	+0.0%	✅
.NET 8 - CallTarget+Inlining+NGEN
process.internal_duration_ms	307.25 ± (304.96 - 309.53) ms	310.19 ± (306.85 - 313.53) ms	+1.0%	✅⬆️
process.time_to_main_ms	515.93 ± (515.06 - 516.80) ms	517.66 ± (516.78 - 518.54) ms	+0.3%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	37.12 ± (37.09 - 37.15) MB	37.17 ± (37.14 - 37.20) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	27 ± (27 - 27)	27 ± (27 - 27)	+0.5%	✅⬆️

HttpMessageHandler

Metric	Master (Mean ± 95% CI)	Current (Mean ± 95% CI)	Change	Status
.NET Framework 4.8 - Baseline
duration	208.49 ± (207.99 - 209.28) ms	192.00 ± (192.07 - 192.59) ms	-7.9%	✅
.NET Framework 4.8 - Bailout
duration	211.74 ± (210.00 - 211.63) ms	195.77 ± (195.52 - 195.96) ms	-7.5%	✅
.NET Framework 4.8 - CallTarget+Inlining+NGEN
duration	1201.71 ± (1194.19 - 1203.89) ms	1141.26 ± (1142.71 - 1150.47) ms	-5.0%	✅
.NET Core 3.1 - Baseline
process.internal_duration_ms	201.56 ± (200.72 - 202.39) ms	187.00 ± (186.72 - 187.29) ms	-7.2%	✅
process.time_to_main_ms	87.62 ± (87.25 - 88.00) ms	80.90 ± (80.68 - 81.13) ms	-7.7%	✅
runtime.dotnet.exceptions.count	3 ± (3 - 3)	3 ± (3 - 3)	+0.0%	✅
runtime.dotnet.mem.committed	16.01 ± (16.00 - 16.03) MB	16.15 ± (16.13 - 16.18) MB	+0.9%	✅⬆️
runtime.dotnet.threads.count	20 ± (20 - 20)	20 ± (19 - 20)	-1.2%	✅
.NET Core 3.1 - Bailout
process.internal_duration_ms	199.23 ± (198.54 - 199.91) ms	187.12 ± (186.87 - 187.37) ms	-6.1%	✅
process.time_to_main_ms	87.63 ± (87.26 - 87.99) ms	81.84 ± (81.73 - 81.94) ms	-6.6%	✅
runtime.dotnet.exceptions.count	3 ± (3 - 3)	3 ± (3 - 3)	+0.0%	✅
runtime.dotnet.mem.committed	16.08 ± (16.07 - 16.10) MB	16.19 ± (16.16 - 16.23) MB	+0.7%	✅⬆️
runtime.dotnet.threads.count	21 ± (21 - 21)	21 ± (21 - 21)	+0.2%	✅⬆️
.NET Core 3.1 - CallTarget+Inlining+NGEN
process.internal_duration_ms	407.78 ± (406.39 - 409.16) ms	392.99 ± (391.70 - 394.28) ms	-3.6%	✅
process.time_to_main_ms	537.07 ± (535.36 - 538.79) ms	506.91 ± (505.88 - 507.94) ms	-5.6%	✅
runtime.dotnet.exceptions.count	3 ± (3 - 3)	3 ± (3 - 3)	+0.0%	✅
runtime.dotnet.mem.committed	59.17 ± (59.13 - 59.22) MB	58.91 ± (58.75 - 59.08) MB	-0.4%	✅
runtime.dotnet.threads.count	30 ± (30 - 30)	30 ± (30 - 30)	-1.1%	✅
.NET 6 - Baseline
process.internal_duration_ms	203.70 ± (202.84 - 204.56) ms	191.69 ± (191.42 - 191.96) ms	-5.9%	✅
process.time_to_main_ms	74.32 ± (73.93 - 74.71) ms	70.31 ± (70.20 - 70.43) ms	-5.4%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	16.26 ± (16.24 - 16.28) MB	15.98 ± (15.83 - 16.13) MB	-1.7%	✅
runtime.dotnet.threads.count	19 ± (19 - 19)	18 ± (18 - 18)	-5.4%	✅
.NET 6 - Bailout
process.internal_duration_ms	207.30 ± (206.86 - 207.73) ms	190.90 ± (190.69 - 191.11) ms	-7.9%	✅
process.time_to_main_ms	77.76 ± (77.52 - 77.99) ms	71.28 ± (71.22 - 71.35) ms	-8.3%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	16.27 ± (16.25 - 16.29) MB	16.29 ± (16.16 - 16.41) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	20 ± (20 - 21)	19 ± (19 - 19)	-6.7%	✅
.NET 6 - CallTarget+Inlining+NGEN
process.internal_duration_ms	599.90 ± (597.53 - 602.28) ms	598.57 ± (595.93 - 601.22) ms	-0.2%	✅
process.time_to_main_ms	543.10 ± (541.14 - 545.06) ms	513.98 ± (512.99 - 514.97) ms	-5.4%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	61.59 ± (61.50 - 61.68) MB	61.49 ± (61.38 - 61.60) MB	-0.2%	✅
runtime.dotnet.threads.count	31 ± (30 - 31)	30 ± (30 - 30)	-0.8%	✅
.NET 8 - Baseline
process.internal_duration_ms	202.64 ± (202.00 - 203.28) ms	191.55 ± (191.26 - 191.83) ms	-5.5%	✅
process.time_to_main_ms	74.36 ± (74.11 - 74.61) ms	70.73 ± (70.56 - 70.91) ms	-4.9%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	11.62 ± (11.61 - 11.64) MB	11.75 ± (11.72 - 11.78) MB	+1.1%	✅⬆️
runtime.dotnet.threads.count	19 ± (19 - 19)	18 ± (18 - 18)	-2.2%	✅
.NET 8 - Bailout
process.internal_duration_ms	202.27 ± (201.66 - 202.88) ms	191.98 ± (191.62 - 192.35) ms	-5.1%	✅
process.time_to_main_ms	75.31 ± (75.05 - 75.57) ms	71.78 ± (71.63 - 71.94) ms	-4.7%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	11.68 ± (11.66 - 11.70) MB	11.81 ± (11.78 - 11.83) MB	+1.1%	✅⬆️
runtime.dotnet.threads.count	20 ± (20 - 20)	19 ± (19 - 19)	-1.8%	✅
.NET 8 - CallTarget+Inlining+NGEN
process.internal_duration_ms	530.59 ± (525.80 - 535.39) ms	523.70 ± (521.15 - 526.24) ms	-1.3%	✅
process.time_to_main_ms	498.17 ± (496.60 - 499.73) ms	474.60 ± (473.81 - 475.39) ms	-4.7%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	50.67 ± (50.62 - 50.72) MB	50.75 ± (50.72 - 50.78) MB	+0.2%	✅⬆️
runtime.dotnet.threads.count	30 ± (30 - 30)	30 ± (30 - 30)	-0.4%	✅

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 (8434) - mean (78ms)  : 76, 81
    master - mean (78ms)  : 75, 81

    section Bailout
    This PR (8434) - mean (83ms)  : 80, 86
    master - mean (82ms)  : 79, 86

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (1,134ms)  : 1097, 1171
    master - mean (1,130ms)  : 1086, 1173

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 (8434) - mean (123ms)  : 117, 129
    master - mean (122ms)  : 118, 126

    section Bailout
    This PR (8434) - mean (124ms)  : 121, 128
    master - mean (124ms)  : 120, 128

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (835ms)  : 807, 863
    master - mean (833ms)  : 814, 852

FakeDbCommand (.NET 6)

gantt
    title Execution time (ms) FakeDbCommand (.NET 6)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8434) - mean (108ms)  : 104, 112
    master - mean (108ms)  : 104, 112

    section Bailout
    This PR (8434) - mean (108ms)  : 104, 112
    master - mean (110ms)  : 106, 113

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (975ms)  : 923, 1027
    master - mean (968ms)  : 928, 1007

FakeDbCommand (.NET 8)

gantt
    title Execution time (ms) FakeDbCommand (.NET 8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8434) - mean (107ms)  : 103, 112
    master - mean (107ms)  : 104, 111

    section Bailout
    This PR (8434) - mean (108ms)  : 105, 112
    master - mean (109ms)  : 106, 112

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (858ms)  : 811, 906
    master - mean (854ms)  : 817, 891

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 (8434) - mean (192ms)  : 190, 195
    master - mean (209ms)  : 200, 218

    section Bailout
    This PR (8434) - mean (196ms)  : 194, 198
    master - mean (211ms)  : 199, 223

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (1,147ms)  : 1088, 1205
    master - mean (1,199ms)  : 1129, 1269

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 (8434) - mean (276ms)  : 272, 280
    master - mean (299ms)  : 281, 316

    section Bailout
    This PR (8434) - mean (277ms)  : 273, 281
    master - mean (296ms)  : 281, 311

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (928ms)  : 905, 950
    master - mean (976ms)  : 929, 1024

HttpMessageHandler (.NET 6)

gantt
    title Execution time (ms) HttpMessageHandler (.NET 6)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8434) - mean (270ms)  : 266, 274
    master - mean (287ms)  : 269, 305

    section Bailout
    This PR (8434) - mean (270ms)  : 267, 273
    master - mean (294ms)  : 282, 305

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (1,143ms)  : 1109, 1176
    master - mean (1,171ms)  : 1129, 1212

HttpMessageHandler (.NET 8)

gantt
    title Execution time (ms) HttpMessageHandler (.NET 8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8434) - mean (272ms)  : 268, 277
    master - mean (287ms)  : 273, 302

    section Bailout
    This PR (8434) - mean (273ms)  : 267, 280
    master - mean (288ms)  : 274, 301

    section CallTarget+Inlining+NGEN
    This PR (8434) - mean (1,030ms)  : 993, 1067
    master - mean (1,061ms)  : 983, 1139

pr-commenter · 2026-04-09T15:44:37Z

Benchmarks

Benchmark execution time: 2026-04-09 20:13:40

Comparing candidate commit 82cc4cf in PR branch anna/attempt-repro-apms-19196 with baseline commit 549e87e in branch master.

Found 32 performance improvements and 40 performance regressions! Performance is the same for 210 metrics, 6 unstable metrics.

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.Trace.ActivityBenchmark.StartStopWithChild net6.0

🟩 throughput [+8822.718op/s; +11122.261op/s] or [+7.416%; +9.349%]

scenario:Benchmarks.Trace.AgentWriterBenchmark.WriteAndFlushEnrichedTraces net472

🟥 execution_time [+312.683ms; +315.194ms] or [+155.164%; +156.411%]

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

🟥 execution_time [+382.611ms; +385.322ms] or [+302.286%; +304.428%]

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

🟥 execution_time [+396.610ms; +399.569ms] or [+350.984%; +353.603%]

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

🟩 execution_time [-16.753ms; -12.575ms] or [-7.824%; -5.873%]
🟩 throughput [+9039.341op/s; +11824.938op/s] or [+6.598%; +8.632%]

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

🟩 throughput [+5573.320op/s; +7866.545op/s] or [+5.039%; +7.112%]

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

🟩 execution_time [-26.088ms; -21.177ms] or [-11.634%; -9.444%]
🟩 throughput [+83329.572op/s; +106745.213op/s] or [+8.902%; +11.404%]

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

🟩 throughput [+82151.704op/s; +98503.551op/s] or [+11.804%; +14.153%]

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

🟩 throughput [+9128.263op/s; +12056.867op/s] or [+5.808%; +7.672%]

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

🟩 throughput [+379874.399op/s; +405486.111op/s] or [+12.667%; +13.521%]

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

🟩 execution_time [-18.952ms; -14.600ms] or [-8.736%; -6.730%]
🟩 throughput [+170863.110op/s; +225611.821op/s] or [+6.782%; +8.955%]

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

🟥 execution_time [+300.299ms; +300.915ms] or [+150.049%; +150.357%]

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

🟥 execution_time [+298.705ms; +301.939ms] or [+150.638%; +152.269%]

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

🟥 execution_time [+299.710ms; +302.343ms] or [+150.970%; +152.297%]

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

🟥 execution_time [+296.131ms; +297.207ms] or [+145.448%; +145.976%]

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

🟥 execution_time [+295.583ms; +296.785ms] or [+144.500%; +145.087%]

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

🟥 execution_time [+301.881ms; +304.330ms] or [+150.880%; +152.104%]

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

🟥 execution_time [+26.506µs; +53.363µs] or [+6.079%; +12.239%]
🟥 throughput [-258.408op/s; -137.644op/s] or [-11.235%; -5.984%]

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

🟥 execution_time [+24.152µs; +47.768µs] or [+7.710%; +15.250%]
🟥 throughput [-442.813op/s; -244.118op/s] or [-13.804%; -7.610%]

scenario:Benchmarks.Trace.AspNetCoreBenchmark.SendRequest net472

🟥 execution_time [+299.770ms; +300.446ms] or [+149.616%; +149.953%]

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

🟥 execution_time [+411.493ms; +416.635ms] or [+447.104%; +452.691%]
🟩 throughput [+1186.358op/s; +1334.121op/s] or [+9.748%; +10.963%]

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

🟩 throughput [+698.902op/s; +899.836op/s] or [+6.766%; +8.711%]

scenario:Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark.WriteAndFlushEnrichedTraces net472

🟥 throughput [-477.725op/s; -428.221op/s] or [-43.287%; -38.801%]

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

🟥 throughput [-742.181op/s; -658.749op/s] or [-49.504%; -43.939%]

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

🟥 execution_time [+335.547ms; +341.483ms] or [+200.696%; +204.246%]
🟥 throughput [-402.697op/s; -368.238op/s] or [-28.039%; -25.640%]

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

🟩 execution_time [-163.719µs; -121.784µs] or [-8.293%; -6.169%]
🟩 throughput [+35.439op/s; +46.890op/s] or [+6.996%; +9.256%]

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

🟩 throughput [+27374.920op/s; +38174.538op/s] or [+5.194%; +7.243%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearch net472

🟥 execution_time [+301.553ms; +302.993ms] or [+151.856%; +152.581%]

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

🟥 execution_time [+301.991ms; +303.490ms] or [+151.328%; +152.080%]
🟩 throughput [+44620.095op/s; +49672.803op/s] or [+7.035%; +7.831%]

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

🟥 execution_time [+299.933ms; +302.914ms] or [+150.674%; +152.171%]

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearchAsync net472

🟥 execution_time [+301.220ms; +302.912ms] or [+151.262%; +152.113%]

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

🟥 execution_time [+297.558ms; +299.764ms] or [+147.129%; +148.220%]

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

🟥 execution_time [+304.165ms; +307.784ms] or [+154.164%; +155.999%]

scenario:Benchmarks.Trace.GraphQLBenchmark.ExecuteAsync net472

🟥 execution_time [+302.988ms; +304.576ms] or [+152.073%; +152.869%]

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

🟥 execution_time [+298.857ms; +301.210ms] or [+148.953%; +150.126%]
🟩 throughput [+57218.168op/s; +62269.424op/s] or [+11.362%; +12.365%]

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

🟥 execution_time [+300.128ms; +303.166ms] or [+149.311%; +150.823%]

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

🟩 execution_time [-16.825ms; -13.178ms] or [-7.824%; -6.128%]
🟩 throughput [+19015.179op/s; +25870.022op/s] or [+5.216%; +7.097%]

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

🟩 allocated_mem [-26.487KB; -26.466KB] or [-9.662%; -9.654%]

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

🟩 allocated_mem [-16.346KB; -16.330KB] or [-5.959%; -5.953%]

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

🟥 execution_time [+5.637µs; +9.676µs] or [+13.324%; +22.870%]
🟥 throughput [-4427.685op/s; -2654.111op/s] or [-18.639%; -11.173%]

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

🟩 throughput [+1918.108op/s; +3402.936op/s] or [+11.768%; +20.878%]

scenario:Benchmarks.Trace.Log4netBenchmark.EnrichedLog net472

🟥 execution_time [+301.340ms; +302.684ms] or [+152.314%; +152.993%]

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

🟥 execution_time [+303.082ms; +305.424ms] or [+154.268%; +155.460%]

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

🟥 execution_time [+302.696ms; +306.262ms] or [+151.536%; +153.322%]

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

🟩 throughput [+30732.525op/s; +42508.409op/s] or [+5.817%; +8.046%]

scenario:Benchmarks.Trace.SerilogBenchmark.EnrichedLog net472

🟥 execution_time [+305.290ms; +307.909ms] or [+152.160%; +153.465%]

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

🟥 execution_time [+302.353ms; +303.688ms] or [+151.827%; +152.498%]

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

🟥 execution_time [+303.749ms; +306.373ms] or [+154.042%; +155.373%]

scenario:Benchmarks.Trace.SingleSpanAspNetCoreBenchmark.SingleSpanAspNetCore net472

🟥 execution_time [+300.078ms; +300.574ms] or [+149.680%; +149.928%]
🟩 throughput [+55025347.473op/s; +62697870.184op/s] or [+40.073%; +45.660%]

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

🟥 execution_time [+418.332ms; +424.325ms] or [+520.270%; +527.724%]
🟩 throughput [+1024.202op/s; +1190.204op/s] or [+7.918%; +9.201%]

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

🟥 execution_time [+299.417ms; +300.383ms] or [+149.343%; +149.824%]
🟩 throughput [+18204553.274op/s; +19151185.045op/s] or [+8.063%; +8.483%]

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

🟩 throughput [+98025.939op/s; +106058.869op/s] or [+9.152%; +9.902%]

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

🟩 throughput [+82839.722op/s; +113244.209op/s] or [+6.412%; +8.765%]

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

🟩 throughput [+80871.173op/s; +90561.822op/s] or [+8.032%; +8.994%]

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishTwoScopes net472

🟥 throughput [-32543.968op/s; -29523.722op/s] or [-7.251%; -6.578%]

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

🟩 throughput [+45633.398op/s; +52432.763op/s] or [+8.286%; +9.521%]

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

🟩 throughput [+69151.307op/s; +88153.862op/s] or [+7.726%; +9.849%]

anna-git added 3 commits April 9, 2026 14:44

add repro

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add repro

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repro case

63d2470

anna-git force-pushed the anna/attempt-repro-apms-19196 branch from cc92a7e to 63d2470 Compare April 9, 2026 14:37

Simpler endpoint

82cc4cf

anna-git force-pushed the anna/attempt-repro-apms-19196 branch from 51f7c92 to 82cc4cf Compare April 9, 2026 19:07

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Anna/attempt repro apms 19196#8434

Anna/attempt repro apms 19196#8434
anna-git wants to merge 4 commits intosteven/attempt-fix-invalid-program-exceptionfrom
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anna-git commented Apr 9, 2026 •

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FakeDbCommand

HttpMessageHandler

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Execution-Time Benchmarks Report ⏱️

FakeDbCommand

HttpMessageHandler

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Benchmarks

Explanation

More details about the CI and significant changes

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

scenario:Benchmarks.Trace.AgentWriterBenchmark.WriteAndFlushEnrichedTraces net472

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

scenario:Benchmarks.Trace.AspNetCoreBenchmark.SendRequest net472

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

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

scenario:Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark.WriteAndFlushEnrichedTraces net472

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

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

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

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

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearch net472

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

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

scenario:Benchmarks.Trace.ElasticsearchBenchmark.CallElasticsearchAsync net472

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

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

scenario:Benchmarks.Trace.GraphQLBenchmark.ExecuteAsync net472

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

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

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

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

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

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

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

scenario:Benchmarks.Trace.Log4netBenchmark.EnrichedLog net472

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

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

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

scenario:Benchmarks.Trace.SerilogBenchmark.EnrichedLog net472

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

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

scenario:Benchmarks.Trace.SingleSpanAspNetCoreBenchmark.SingleSpanAspNetCore net472

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

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

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

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

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

scenario:Benchmarks.Trace.SpanBenchmark.StartFinishTwoScopes net472

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

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

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