[Profiler] Add support for ARM64 by gleocadie · Pull Request #8338 · DataDog/dd-trace-dotnet

gleocadie · 2026-03-19T10:16:16Z

Summary of changes

Reason for change

Implementation details

Test coverage

Other details

pr-commenter · 2026-03-19T11:00:15Z

Benchmarks

Benchmark execution time: 2026-03-24 23:31:37

Comparing candidate commit f92f5cf in PR branch gleocadie/add-frame-based-pointer-unwinding-for-arm64 with baseline commit 6aadb93 in branch master.

Found 9 performance improvements and 5 performance regressions! Performance is the same for 259 metrics, 15 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.AgentWriterBenchmark.WriteAndFlushEnrichedTraces net6.0

🟩 execution_time [-80.572ms; -80.239ms] or [-39.175%; -39.012%]

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

🟩 throughput [+319503.578op/s; +327295.814op/s] or [+10.906%; +11.172%]

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

🟩 execution_time [-18.329ms; -12.471ms] or [-8.564%; -5.827%]

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

🟥 throughput [-148.143op/s; -138.737op/s] or [-10.542%; -9.873%]
🟩 execution_time [-16.687ms; -15.382ms] or [-8.621%; -7.947%]

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

🟩 execution_time [-126.255µs; -119.158µs] or [-8.265%; -7.800%]
🟩 throughput [+55.494op/s; +58.874op/s] or [+8.477%; +8.993%]

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

🟥 throughput [-193.951op/s; -142.966op/s] or [-37.260%; -27.465%]

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

🟩 execution_time [-15.791ms; -11.547ms] or [-7.392%; -5.406%]

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

🟩 allocated_mem [-19.422KB; -19.392KB] or [-7.015%; -7.004%]

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

🟩 execution_time [-14.965ms; -11.114ms] or [-7.088%; -5.264%]

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

🟥 throughput [-16364265.549op/s; -15259789.213op/s] or [-6.780%; -6.323%]

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

🟥 execution_time [+13.290ms; +16.957ms] or [+6.671%; +8.512%]

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

🟥 execution_time [+13.583ms; +17.688ms] or [+6.867%; +8.942%]

dd-trace-dotnet-ci-bot · 2026-03-19T11:07:18Z

Execution-Time Benchmarks Report ⏱️

Execution-time results for samples comparing This PR (8338) 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	68.51 ± (68.58 - 68.93) ms	68.69 ± (68.66 - 68.89) ms	+0.3%	✅⬆️
.NET Framework 4.8 - Bailout
duration	72.51 ± (72.50 - 72.78) ms	72.34 ± (72.28 - 72.57) ms	-0.2%	✅
.NET Framework 4.8 - CallTarget+Inlining+NGEN
duration	1043.80 ± (1045.05 - 1052.04) ms	1048.01 ± (1050.00 - 1056.34) ms	+0.4%	✅⬆️
.NET Core 3.1 - Baseline
process.internal_duration_ms	21.83 ± (21.80 - 21.86) ms	21.89 ± (21.86 - 21.92) ms	+0.3%	✅⬆️
process.time_to_main_ms	79.65 ± (79.47 - 79.83) ms	79.40 ± (79.24 - 79.56) ms	-0.3%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.90 ± (10.90 - 10.90) MB	10.91 ± (10.90 - 10.91) MB	+0.1%	✅⬆️
runtime.dotnet.threads.count	12 ± (12 - 12)	12 ± (12 - 12)	+0.0%	✅
.NET Core 3.1 - Bailout
process.internal_duration_ms	21.70 ± (21.68 - 21.72) ms	21.82 ± (21.80 - 21.85) ms	+0.6%	✅⬆️
process.time_to_main_ms	80.86 ± (80.72 - 80.99) ms	80.79 ± (80.60 - 80.98) ms	-0.1%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.93 ± (10.93 - 10.94) MB	10.94 ± (10.93 - 10.94) MB	+0.0%	✅⬆️
runtime.dotnet.threads.count	13 ± (13 - 13)	13 ± (13 - 13)	+0.0%	✅
.NET Core 3.1 - CallTarget+Inlining+NGEN
process.internal_duration_ms	217.51 ± (216.15 - 218.87) ms	218.32 ± (217.01 - 219.62) ms	+0.4%	✅⬆️
process.time_to_main_ms	518.24 ± (517.03 - 519.44) ms	520.47 ± (519.55 - 521.39) ms	+0.4%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	48.28 ± (48.25 - 48.31) MB	48.30 ± (48.26 - 48.33) MB	+0.0%	✅⬆️
runtime.dotnet.threads.count	28 ± (28 - 28)	28 ± (28 - 28)	-0.1%	✅
.NET 6 - Baseline
process.internal_duration_ms	20.59 ± (20.57 - 20.62) ms	20.53 ± (20.50 - 20.57) ms	-0.3%	✅
process.time_to_main_ms	69.06 ± (68.92 - 69.21) ms	68.82 ± (68.63 - 69.01) ms	-0.4%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.62 ± (10.62 - 10.63) MB	10.62 ± (10.62 - 10.62) MB	-0.0%	✅
runtime.dotnet.threads.count	10 ± (10 - 10)	10 ± (10 - 10)	+0.0%	✅
.NET 6 - Bailout
process.internal_duration_ms	20.43 ± (20.41 - 20.46) ms	20.57 ± (20.54 - 20.61) ms	+0.7%	✅⬆️
process.time_to_main_ms	69.61 ± (69.49 - 69.73) ms	70.11 ± (70.01 - 70.20) ms	+0.7%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	10.67 ± (10.67 - 10.68) MB	10.74 ± (10.74 - 10.74) MB	+0.6%	✅⬆️
runtime.dotnet.threads.count	11 ± (11 - 11)	11 ± (11 - 11)	+0.0%	✅
.NET 6 - CallTarget+Inlining+NGEN
process.internal_duration_ms	206.44 ± (205.07 - 207.81) ms	207.19 ± (205.86 - 208.51) ms	+0.4%	✅⬆️
process.time_to_main_ms	518.43 ± (517.07 - 519.80) ms	518.82 ± (517.60 - 520.04) ms	+0.1%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	50.07 ± (50.03 - 50.11) MB	50.06 ± (50.02 - 50.11) MB	-0.0%	✅
runtime.dotnet.threads.count	29 ± (29 - 29)	29 ± (29 - 29)	+0.0%	✅⬆️
.NET 8 - Baseline
process.internal_duration_ms	18.77 ± (18.74 - 18.79) ms	18.76 ± (18.74 - 18.78) ms	-0.0%	✅
process.time_to_main_ms	68.20 ± (68.06 - 68.34) ms	68.15 ± (68.05 - 68.26) ms	-0.1%	✅
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	7.68 ± (7.67 - 7.68) MB	7.67 ± (7.67 - 7.68) MB	-0.0%	✅
runtime.dotnet.threads.count	10 ± (10 - 10)	10 ± (10 - 10)	+0.0%	✅
.NET 8 - Bailout
process.internal_duration_ms	18.78 ± (18.75 - 18.82) ms	18.85 ± (18.83 - 18.88) ms	+0.4%	✅⬆️
process.time_to_main_ms	69.16 ± (69.06 - 69.27) ms	69.53 ± (69.43 - 69.64) ms	+0.5%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	7.74 ± (7.74 - 7.75) MB	7.73 ± (7.73 - 7.74) MB	-0.1%	✅
runtime.dotnet.threads.count	11 ± (11 - 11)	11 ± (11 - 11)	+0.0%	✅
.NET 8 - CallTarget+Inlining+NGEN
process.internal_duration_ms	153.90 ± (153.15 - 154.66) ms	155.04 ± (154.20 - 155.87) ms	+0.7%	✅⬆️
process.time_to_main_ms	475.25 ± (474.46 - 476.05) ms	480.68 ± (479.71 - 481.65) ms	+1.1%	✅⬆️
runtime.dotnet.exceptions.count	0 ± (0 - 0)	0 ± (0 - 0)	+0.0%	✅
runtime.dotnet.mem.committed	36.93 ± (36.91 - 36.95) MB	36.91 ± (36.88 - 36.93) MB	-0.1%	✅
runtime.dotnet.threads.count	28 ± (28 - 28)	28 ± (28 - 28)	+0.2%	✅⬆️

HttpMessageHandler

Metric	Master (Mean ± 95% CI)	Current (Mean ± 95% CI)	Change	Status
.NET Framework 4.8 - Baseline
duration	214.49 ± (214.32 - 215.64) ms	192.77 ± (192.52 - 193.47) ms	-10.1%	✅
.NET Framework 4.8 - Bailout
duration	219.00 ± (218.88 - 220.22) ms	195.71 ± (195.58 - 196.08) ms	-10.6%	✅
.NET Framework 4.8 - CallTarget+Inlining+NGEN
duration	1250.89 ± (1247.88 - 1255.72) ms	1154.05 ± (1154.57 - 1161.37) ms	-7.7%	✅
.NET Core 3.1 - Baseline
process.internal_duration_ms	210.96 ± (210.39 - 211.54) ms	187.39 ± (187.05 - 187.73) ms	-11.2%	✅
process.time_to_main_ms	90.46 ± (90.19 - 90.72) ms	80.82 ± (80.58 - 81.05) ms	-10.7%	✅
runtime.dotnet.exceptions.count	3 ± (3 - 3)	3 ± (3 - 3)	+0.0%	✅
runtime.dotnet.mem.committed	15.87 ± (15.85 - 15.88) MB	16.11 ± (16.08 - 16.14) MB	+1.5%	✅⬆️
runtime.dotnet.threads.count	20 ± (20 - 20)	20 ± (19 - 20)	-2.0%	✅
.NET Core 3.1 - Bailout
process.internal_duration_ms	211.03 ± (210.38 - 211.68) ms	187.28 ± (187.02 - 187.55) ms	-11.3%	✅
process.time_to_main_ms	91.88 ± (91.64 - 92.11) ms	82.06 ± (81.91 - 82.21) ms	-10.7%	✅
runtime.dotnet.exceptions.count	3 ± (3 - 3)	3 ± (3 - 3)	+0.0%	✅
runtime.dotnet.mem.committed	15.91 ± (15.90 - 15.93) MB	16.23 ± (16.20 - 16.25) MB	+2.0%	✅⬆️
runtime.dotnet.threads.count	21 ± (21 - 21)	21 ± (20 - 21)	-1.9%	✅
.NET Core 3.1 - CallTarget+Inlining+NGEN
process.internal_duration_ms	421.13 ± (419.76 - 422.50) ms	392.23 ± (391.05 - 393.41) ms	-6.9%	✅
process.time_to_main_ms	566.51 ± (565.04 - 567.97) ms	522.04 ± (521.10 - 522.98) ms	-7.8%	✅
runtime.dotnet.exceptions.count	3 ± (3 - 3)	3 ± (3 - 3)	+0.0%	✅
runtime.dotnet.mem.committed	59.13 ± (59.09 - 59.17) MB	58.87 ± (58.71 - 59.03) MB	-0.4%	✅
runtime.dotnet.threads.count	30 ± (30 - 30)	30 ± (30 - 30)	-0.2%	✅
.NET 6 - Baseline
process.internal_duration_ms	217.27 ± (216.65 - 217.88) ms	191.47 ± (191.07 - 191.86) ms	-11.9%	✅
process.time_to_main_ms	78.72 ± (78.54 - 78.91) ms	70.59 ± (70.36 - 70.81) ms	-10.3%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	16.15 ± (16.14 - 16.17) MB	16.25 ± (16.13 - 16.37) MB	+0.6%	✅⬆️
runtime.dotnet.threads.count	20 ± (20 - 20)	18 ± (18 - 19)	-6.0%	✅
.NET 6 - Bailout
process.internal_duration_ms	215.85 ± (215.26 - 216.43) ms	190.79 ± (190.50 - 191.09) ms	-11.6%	✅
process.time_to_main_ms	79.80 ± (79.62 - 79.98) ms	71.17 ± (71.04 - 71.30) ms	-10.8%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	16.17 ± (16.15 - 16.18) MB	16.09 ± (15.93 - 16.24) MB	-0.5%	✅
runtime.dotnet.threads.count	21 ± (20 - 21)	19 ± (19 - 19)	-7.1%	✅
.NET 6 - CallTarget+Inlining+NGEN
process.internal_duration_ms	448.96 ± (447.26 - 450.66) ms	415.13 ± (413.81 - 416.46) ms	-7.5%	✅
process.time_to_main_ms	572.15 ± (571.03 - 573.28) ms	525.05 ± (523.55 - 526.54) ms	-8.2%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	60.90 ± (60.85 - 60.96) MB	60.92 ± (60.88 - 60.96) MB	+0.0%	✅⬆️
runtime.dotnet.threads.count	31 ± (31 - 31)	31 ± (30 - 31)	-1.8%	✅
.NET 8 - Baseline
process.internal_duration_ms	213.69 ± (213.07 - 214.32) ms	189.83 ± (189.57 - 190.10) ms	-11.2%	✅
process.time_to_main_ms	77.45 ± (77.24 - 77.65) ms	69.72 ± (69.52 - 69.92) ms	-10.0%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	11.47 ± (11.46 - 11.49) MB	11.78 ± (11.75 - 11.81) MB	+2.7%	✅⬆️
runtime.dotnet.threads.count	19 ± (19 - 19)	18 ± (18 - 18)	-3.8%	✅
.NET 8 - Bailout
process.internal_duration_ms	213.83 ± (213.10 - 214.56) ms	188.91 ± (188.59 - 189.23) ms	-11.7%	✅
process.time_to_main_ms	78.59 ± (78.40 - 78.79) ms	70.55 ± (70.43 - 70.67) ms	-10.2%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	11.51 ± (11.49 - 11.53) MB	11.78 ± (11.75 - 11.82) MB	+2.4%	✅⬆️
runtime.dotnet.threads.count	20 ± (20 - 20)	19 ± (19 - 19)	-4.2%	✅
.NET 8 - CallTarget+Inlining+NGEN
process.internal_duration_ms	459.63 ± (454.30 - 464.97) ms	339.10 ± (338.04 - 340.17) ms	-26.2%	✅
process.time_to_main_ms	527.26 ± (526.20 - 528.31) ms	482.16 ± (481.18 - 483.15) ms	-8.6%	✅
runtime.dotnet.exceptions.count	4 ± (4 - 4)	4 ± (4 - 4)	+0.0%	✅
runtime.dotnet.mem.committed	50.61 ± (50.51 - 50.71) MB	48.88 ± (48.84 - 48.92) MB	-3.4%	✅
runtime.dotnet.threads.count	30 ± (30 - 30)	30 ± (30 - 30)	-0.7%	✅

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 (8338) - mean (69ms)  : 67, 70
    master - mean (69ms)  : 66, 71

    section Bailout
    This PR (8338) - mean (72ms)  : 71, 74
    master - mean (73ms)  : 71, 74

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (1,053ms)  : 1008, 1098
    master - mean (1,049ms)  : 999, 1098

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 (8338) - mean (107ms)  : 104, 110
    master - mean (107ms)  : 104, 111

    section Bailout
    This PR (8338) - mean (108ms)  : 106, 110
    master - mean (108ms)  : 106, 110

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (776ms)  : 758, 794
    master - mean (772ms)  : 757, 788

FakeDbCommand (.NET 6)

gantt
    title Execution time (ms) FakeDbCommand (.NET 6)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8338) - mean (95ms)  : 92, 97
    master - mean (95ms)  : 92, 98

    section Bailout
    This PR (8338) - mean (96ms)  : 94, 98
    master - mean (95ms)  : 94, 97

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (757ms)  : 739, 775
    master - mean (758ms)  : 735, 781

FakeDbCommand (.NET 8)

gantt
    title Execution time (ms) FakeDbCommand (.NET 8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8338) - mean (93ms)  : 91, 96
    master - mean (94ms)  : 91, 96

    section Bailout
    This PR (8338) - mean (95ms)  : 93, 97
    master - mean (95ms)  : 93, 96

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (669ms)  : 646, 691
    master - mean (661ms)  : 639, 684

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 (8338) - mean (193ms)  : 188, 198
    master - mean (215ms)  : 205, 224

    section Bailout
    This PR (8338) - mean (196ms)  : 194, 198
    master - mean (220ms)  : 209, 230

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (1,158ms)  : 1109, 1207
    master - mean (1,252ms)  : 1193, 1311

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 (8338) - mean (277ms)  : 272, 282
    master - mean (311ms)  : 299, 324

    section Bailout
    This PR (8338) - mean (278ms)  : 272, 284
    master - mean (312ms)  : 300, 325

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (944ms)  : 922, 966
    master - mean (1,029ms)  : 998, 1060

HttpMessageHandler (.NET 6)

gantt
    title Execution time (ms) HttpMessageHandler (.NET 6)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8338) - mean (270ms)  : 264, 277
    master - mean (305ms)  : 294, 317

    section Bailout
    This PR (8338) - mean (270ms)  : 266, 273
    master - mean (305ms)  : 294, 316

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (972ms)  : 951, 993
    master - mean (1,057ms)  : 1018, 1096

HttpMessageHandler (.NET 8)

gantt
    title Execution time (ms) HttpMessageHandler (.NET 8)
    dateFormat  x
    axisFormat %Q
    todayMarker off
    section Baseline
    This PR (8338) - mean (269ms)  : 264, 274
    master - mean (302ms)  : 291, 313

    section Bailout
    This PR (8338) - mean (269ms)  : 264, 274
    master - mean (303ms)  : 290, 316

    section CallTarget+Inlining+NGEN
    This PR (8338) - mean (853ms)  : 824, 883
    master - mean (1,021ms)  : 920, 1122

github-actions bot added the area:profiler Issues related to the continous-profiler label Mar 19, 2026

gleocadie force-pushed the gleocadie/add-frame-based-pointer-unwinding-for-arm64 branch 6 times, most recently from 250fd24 to f1e81fd Compare March 24, 2026 15:02

gleocadie added 15 commits March 24, 2026 16:34

Add HybridUnwinder for ARM64 only

f8daaff

Add CI job

eca7f24

Make sure profiler is not disabled in the code

7bd5ccc

Fix path construction when running the integration tests

78e851d

Fix bug in ManagedCodeCache

275c248

Fix native loader

09ca9ee

Fix tracer/profiler test

50f401e

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ace1a2c

Fix framework for test + check lr-fallback approach

150edb3

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36b4868

Try fixing stack walking with jit stub/helper

46a4c94

Try fixing net9 issue with stack collection

6a8b9ac

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f96c935

Fix deadlock

2c21501

gleocadie force-pushed the gleocadie/add-frame-based-pointer-unwinding-for-arm64 branch 2 times, most recently from 35f76d0 to ba7a85e Compare March 24, 2026 16:52

Try fixing crash in libunwind

c4d42ed

gleocadie force-pushed the gleocadie/add-frame-based-pointer-unwinding-for-arm64 branch from ba7a85e to c4d42ed Compare March 24, 2026 16:53

gleocadie mentioned this pull request Mar 24, 2026

[Profiler] Add support for ARM64 back to the .NET profiler or allow enabling experimental feature. #3063

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gleocadie force-pushed the gleocadie/add-frame-based-pointer-unwinding-for-arm64 branch from 73c4896 to c4d42ed Compare March 24, 2026 22:46

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[Profiler] Add support for ARM64#8338

[Profiler] Add support for ARM64#8338
gleocadie wants to merge 17 commits intomasterfrom
gleocadie/add-frame-based-pointer-unwinding-for-arm64

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gleocadie commented Mar 19, 2026

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

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

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

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

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

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

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

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

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

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

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

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

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Execution-Time Benchmarks Report ⏱️

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