[Tracer] Extracting Last Parent Id If Conflicting SpanIds are Found with The W3C Headers

[link04]

Summary of changes

Making sure that the Parent Id tag is set as expected based on the confirmation that the TraceIds match but the SpanIds don't when using the W3C headers, also setting the spanId based on that disconnected to keep try fixing the parent relation ship.

RFC: https://docs.google.com/document/d/1Zc7uAQTJ2G5vHEbmx8k4vMnYdQ-BnqZxewXk0ohgd3g/edit

Reason for change

To improve our interoperability with the tracecontext headers.

Implementation details

Added the following to the SpanContextProgator.cs:

if (localSpanContext.RawSpanId != spanContext.RawSpanId)
{
    if (!string.IsNullOrEmpty(spanContext.LastParentId) && spanContext.LastParentId != W3CTraceContextPropagator.ZeroLastParent)
    {
        localSpanContext.LastParentId = spanContext.LastParentId;
    }
    else
    {
        localSpanContext.LastParentId = $"{localSpanContext.SpanId:x16}";
    }

    localSpanContext.SpanId = spanContext.SpanId;
}

Test coverage

Added new test case based out of the system-tests cases for this feature: https://github.com/DataDog/system-tests/pull/2385

[andrewlock]

Execution-Time Benchmarks Report :stopwatch:

Execution-time results for samples comparing the following branches/commits:

• This PR (5721)
• master

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 shown 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).

gantt
    title Execution time (ms) FakeDbCommand (.NET Framework 4.6.2) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    master - mean (74ms)  : 62, 85
     .   : milestone, 74,

    section CallTarget+Inlining+NGEN
    master - mean (945ms)  : 815, 1075
     .   : milestone, 945,

gantt
    title Execution time (ms) FakeDbCommand (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    master - mean (120ms)  : 111, 130
     .   : milestone, 120,

    section CallTarget+Inlining+NGEN
    master - mean (741ms)  : 650, 832
     .   : milestone, 741,

gantt
    title Execution time (ms) FakeDbCommand (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    master - mean (122ms)  : 119, 125
     .   : milestone, 122,

    section CallTarget+Inlining+NGEN
    master - mean (671ms)  : 495, 848
     .   : milestone, 671,

gantt
    title Execution time (ms) HttpMessageHandler (.NET Framework 4.6.2) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    master - mean (191ms)  : 187, 196
     .   : milestone, 191,

    section CallTarget+Inlining+NGEN
    master - mean (1,001ms)  : 974, 1028
     .   : milestone, 1001,

gantt
    title Execution time (ms) HttpMessageHandler (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    master - mean (276ms)  : 273, 280
     .   : milestone, 276,

    section CallTarget+Inlining+NGEN
    master - mean (823ms)  : 798, 849
     .   : milestone, 823,

gantt
    title Execution time (ms) HttpMessageHandler (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    master - mean (265ms)  : 262, 269
     .   : milestone, 265,

    section CallTarget+Inlining+NGEN
    master - mean (809ms)  : 780, 839
     .   : milestone, 809,

[andrewlock]

Throughput/Crank Report:zap:

Throughput results for AspNetCoreSimpleController comparing the following branches/commits:

• This PR (5721)
• master
• benchmarks/2.9.0

Cases where throughput results for the PR are worse than latest master (5% drop or greater), results are shown in red.

Note that these results are based on a single point-in-time result for each branch. For full results, see one of the many, many dashboards!

gantt
    title Throughput Linux x64 (Total requests) 
    dateFormat  X
    axisFormat %s
    section Baseline
    This PR (5721) (11.955M)   : 0, 11955107
    master (11.842M)   : 0, 11842369
    benchmarks/2.9.0 (12.049M)   : 0, 12048905

    section Automatic
    This PR (5721) (7.897M)   : 0, 7896532
    master (7.999M)   : 0, 7998666
    benchmarks/2.9.0 (8.464M)   : 0, 8463997

    section Trace stats
    master (8.337M)   : 0, 8336641

    section Manual
    This PR (5721) (10.141M)   : 0, 10140964
    master (10.173M)   : 0, 10173108

    section Manual + Automatic
    This PR (5721) (7.475M)   : 0, 7474503
    master (7.350M)   : 0, 7349541

    section Version Conflict
    master (6.703M)   : 0, 6702940

gantt
    title Throughput Linux arm64 (Total requests) 
    dateFormat  X
    axisFormat %s
    section Baseline
    This PR (5721) (9.591M)   : 0, 9590887
    master (9.512M)   : 0, 9511621
    benchmarks/2.9.0 (9.590M)   : 0, 9590349

    section Automatic
    This PR (5721) (6.569M)   : 0, 6569301
    master (6.515M)   : 0, 6515399

    section Trace stats
    master (6.862M)   : 0, 6861752

    section Manual
    This PR (5721) (8.182M)   : 0, 8181694
    master (8.299M)   : 0, 8298527

    section Manual + Automatic
    This PR (5721) (6.269M)   : 0, 6269343
    master (6.262M)   : 0, 6262373

    section Version Conflict
    master (5.588M)   : 0, 5588112

gantt
    title Throughput Windows x64 (Total requests) 
    dateFormat  X
    axisFormat %s
    section Baseline
    This PR (5721) (10.263M)   : 0, 10263454
    master (10.162M)   : 0, 10161696
    benchmarks/2.9.0 (10.465M)   : 0, 10465033

    section Automatic
    This PR (5721) (7.290M)   : 0, 7290428
    master (7.293M)   : 0, 7293498
    benchmarks/2.9.0 (7.635M)   : 0, 7635248

    section Trace stats
    master (7.497M)   : 0, 7496532

    section Manual
    This PR (5721) (8.976M)   : 0, 8975771
    master (9.243M)   : 0, 9243291

    section Manual + Automatic
    This PR (5721) (7.050M)   : 0, 7049924
    master (6.976M)   : 0, 6975655

    section Version Conflict
    master (6.267M)   : 0, 6266553

[andrewlock]

Benchmarks Report for tracer :snail:

Benchmarks for #5721 compared to master:

• 1 benchmarks are faster, with geometric mean 1.127
• 1 benchmarks are slower, with geometric mean 1.185
• All benchmarks have the same allocations

The following thresholds were used for comparing the benchmark speeds:

• Mann–Whitney U test with statistical test for significance of 5%
• Only results indicating a difference greater than 10% and 0.3 ns are considered.

Allocation changes below 0.5% are ignored.

Benchmark details

Benchmarks.Trace.ActivityBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartStopWithChild`|net6.0|7.84μs|43.5ns|292ns|0.019| 0.00762|0|5.42 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartStopWithChild`|netcoreapp3.1|10μs|51.7ns|243ns|0.0203| 0.0102|0|5.62 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartStopWithChild`|net472|16.1μs|53.4ns|207ns|1.02| 0.314|0.0943|6.08 KB| |#5721|`StartStopWithChild`|net6.0|7.79μs|37.9ns|189ns|0.0146| 0.00731|0|5.42 KB| |#5721|`StartStopWithChild`|netcoreapp3.1|9.72μs|53.1ns|296ns|0.0154| 0.00512|0|5.62 KB| |#5721|`StartStopWithChild`|net472|16μs|48.9ns|190ns|1.04| 0.332|0.0947|6.07 KB|

Benchmarks.Trace.AgentWriterBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`WriteAndFlushEnrichedTraces`|net6.0|487μs|415ns|1.61μs|0| 0|0|2.7 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`WriteAndFlushEnrichedTraces`|netcoreapp3.1|633μs|314ns|1.22μs|0| 0|0|2.7 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`WriteAndFlushEnrichedTraces`|net472|817μs|197ns|764ns|0.408| 0|0|3.3 KB| |#5721|`WriteAndFlushEnrichedTraces`|net6.0|497μs|177ns|640ns|0| 0|0|2.7 KB| |#5721|`WriteAndFlushEnrichedTraces`|netcoreapp3.1|638μs|173ns|625ns|0| 0|0|2.7 KB| |#5721|`WriteAndFlushEnrichedTraces`|net472|818μs|192ns|745ns|0.408| 0|0|3.3 KB|

Benchmarks.Trace.AspNetCoreBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendRequest`|net6.0|174μs|341ns|1.32μs|0.173| 0|0|18.45 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendRequest`|netcoreapp3.1|191μs|324ns|1.26μs|0.191| 0|0|20.61 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendRequest`|net472|0.000406ns|0.000256ns|0.000992ns|0| 0|0|0 b| |#5721|`SendRequest`|net6.0|172μs|191ns|715ns|0.257| 0|0|18.45 KB| |#5721|`SendRequest`|netcoreapp3.1|194μs|288ns|1.11μs|0.195| 0|0|20.61 KB| |#5721|`SendRequest`|net472|0.000136ns|6.93E‑05ns|0.000268ns|0| 0|0|0 b|

Benchmarks.Trace.CIVisibilityProtocolWriterBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`WriteAndFlushEnrichedTraces`|net6.0|544μs|341ns|1.28μs|0.543| 0|0|41.62 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`WriteAndFlushEnrichedTraces`|netcoreapp3.1|650μs|1.71μs|6.63μs|0.327| 0|0|41.7 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`WriteAndFlushEnrichedTraces`|net472|854μs|4.15μs|17.1μs|8.33| 2.5|0.417|53.25 KB| |#5721|`WriteAndFlushEnrichedTraces`|net6.0|545μs|229ns|824ns|0.541| 0|0|41.51 KB| |#5721|`WriteAndFlushEnrichedTraces`|netcoreapp3.1|666μs|454ns|1.76μs|0.329| 0|0|41.86 KB| |#5721|`WriteAndFlushEnrichedTraces`|net472|872μs|2.92μs|10.9μs|8.54| 2.25|0.45|53.22 KB|

Benchmarks.Trace.DbCommandBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`ExecuteNonQuery`|net6.0|1.32μs|0.623ns|2.41ns|0.0138| 0|0|1.02 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`ExecuteNonQuery`|netcoreapp3.1|1.62μs|1.04ns|4.02ns|0.0139| 0|0|1.02 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`ExecuteNonQuery`|net472|1.94μs|3.21ns|12.4ns|0.157| 0|0|987 B| |#5721|`ExecuteNonQuery`|net6.0|1.31μs|1.02ns|3.96ns|0.0144| 0|0|1.02 KB| |#5721|`ExecuteNonQuery`|netcoreapp3.1|1.64μs|0.585ns|2.19ns|0.0132| 0|0|1.02 KB| |#5721|`ExecuteNonQuery`|net472|1.99μs|0.524ns|1.96ns|0.157| 0|0|987 B|

Benchmarks.Trace.ElasticsearchBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`CallElasticsearch`|net6.0|1.24μs|0.458ns|1.78ns|0.0137| 0|0|976 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`CallElasticsearch`|netcoreapp3.1|1.51μs|0.45ns|1.62ns|0.0128| 0|0|976 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`CallElasticsearch`|net472|2.64μs|1.83ns|6.84ns|0.157| 0|0|995 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`CallElasticsearchAsync`|net6.0|1.28μs|0.653ns|2.44ns|0.0134| 0|0|952 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`CallElasticsearchAsync`|netcoreapp3.1|1.73μs|3.48ns|13.5ns|0.0137| 0|0|1.02 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`CallElasticsearchAsync`|net472|2.5μs|1.43ns|5.34ns|0.166| 0|0|1.05 KB| |#5721|`CallElasticsearch`|net6.0|1.19μs|0.676ns|2.53ns|0.0138| 0|0|976 B| |#5721|`CallElasticsearch`|netcoreapp3.1|1.59μs|6.93ns|25.9ns|0.0131| 0|0|976 B| |#5721|`CallElasticsearch`|net472|2.72μs|5.35ns|20.7ns|0.157| 0|0|995 B| |#5721|`CallElasticsearchAsync`|net6.0|1.32μs|1.15ns|4.47ns|0.0133| 0|0|952 B| |#5721|`CallElasticsearchAsync`|netcoreapp3.1|1.65μs|0.953ns|3.3ns|0.0134| 0|0|1.02 KB| |#5721|`CallElasticsearchAsync`|net472|2.58μs|0.891ns|3.09ns|0.166| 0|0|1.05 KB|

Benchmarks.Trace.GraphQLBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`ExecuteAsync`|net6.0|1.26μs|0.528ns|2.05ns|0.0132| 0|0|952 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`ExecuteAsync`|netcoreapp3.1|1.73μs|5.54ns|21.5ns|0.013| 0|0|952 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`ExecuteAsync`|net472|1.84μs|0.645ns|2.5ns|0.145| 0|0|915 B| |#5721|`ExecuteAsync`|net6.0|1.2μs|0.91ns|3.52ns|0.0133| 0|0|952 B| |#5721|`ExecuteAsync`|netcoreapp3.1|1.67μs|0.477ns|1.72ns|0.0125| 0|0|952 B| |#5721|`ExecuteAsync`|net472|1.8μs|1.25ns|4.85ns|0.145| 0|0|915 B|

Benchmarks.Trace.HttpClientBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendAsync`|net6.0|4.18μs|1.82ns|6.81ns|0.0314| 0|0|2.22 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendAsync`|netcoreapp3.1|5.01μs|2.42ns|9.36ns|0.0379| 0|0|2.76 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendAsync`|net472|7.71μs|8.49ns|32.9ns|0.498| 0|0|3.15 KB| |#5721|`SendAsync`|net6.0|4.11μs|1.33ns|4.99ns|0.031| 0|0|2.22 KB| |#5721|`SendAsync`|netcoreapp3.1|5.07μs|3.61ns|14ns|0.0383| 0|0|2.76 KB| |#5721|`SendAsync`|net472|7.7μs|2.89ns|11.2ns|0.498| 0|0|3.15 KB|

Benchmarks.Trace.ILoggerBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net6.0|1.45μs|0.588ns|2.2ns|0.0231| 0|0|1.64 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|netcoreapp3.1|2.23μs|1.75ns|6.79ns|0.0223| 0|0|1.64 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net472|2.53μs|1.43ns|5.37ns|0.249| 0|0|1.57 KB| |#5721|`EnrichedLog`|net6.0|1.56μs|2.44ns|9.47ns|0.0227| 0|0|1.64 KB| |#5721|`EnrichedLog`|netcoreapp3.1|2.25μs|1.12ns|4.2ns|0.0224| 0|0|1.64 KB| |#5721|`EnrichedLog`|net472|2.51μs|1.9ns|7.35ns|0.249| 0|0|1.57 KB|

Benchmarks.Trace.Log4netBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net6.0|112μs|63.9ns|239ns|0| 0|0|4.28 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|netcoreapp3.1|118μs|134ns|502ns|0| 0|0|4.28 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net472|146μs|95.7ns|358ns|0.658| 0.219|0|4.46 KB| |#5721|`EnrichedLog`|net6.0|115μs|155ns|602ns|0| 0|0|4.28 KB| |#5721|`EnrichedLog`|netcoreapp3.1|120μs|252ns|975ns|0| 0|0|4.28 KB| |#5721|`EnrichedLog`|net472|146μs|60.1ns|225ns|0.658| 0.219|0|4.46 KB|

Benchmarks.Trace.NLogBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net6.0|2.98μs|2.08ns|8.05ns|0.0313| 0|0|2.2 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|netcoreapp3.1|4.28μs|2.74ns|10.3ns|0.0278| 0|0|2.2 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net472|4.82μs|2.66ns|10.3ns|0.319| 0|0|2.02 KB| |#5721|`EnrichedLog`|net6.0|3.1μs|0.971ns|3.76ns|0.0308| 0|0|2.2 KB| |#5721|`EnrichedLog`|netcoreapp3.1|4.28μs|2.19ns|8.49ns|0.0299| 0|0|2.2 KB| |#5721|`EnrichedLog`|net472|4.75μs|1.04ns|3.75ns|0.32| 0|0|2.02 KB|

Benchmarks.Trace.RedisBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendReceive`|net6.0|1.3μs|0.483ns|1.87ns|0.0162| 0|0|1.14 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendReceive`|netcoreapp3.1|1.72μs|1.1ns|4.25ns|0.0156| 0|0|1.14 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`SendReceive`|net472|2.09μs|1.32ns|5.13ns|0.183| 0|0|1.16 KB| |#5721|`SendReceive`|net6.0|1.3μs|0.897ns|3.36ns|0.0163| 0|0|1.14 KB| |#5721|`SendReceive`|netcoreapp3.1|1.68μs|2.58ns|9.99ns|0.0152| 0|0|1.14 KB| |#5721|`SendReceive`|net472|1.99μs|1.56ns|6.05ns|0.183| 0|0|1.16 KB|

Benchmarks.Trace.SerilogBenchmark - Same speed :heavy_check_mark: Same allocations :heavy_check_mark:

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net6.0|2.82μs|0.832ns|3.22ns|0.0227| 0|0|1.6 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|netcoreapp3.1|3.99μs|3.08ns|11.9ns|0.022| 0|0|1.65 KB| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`EnrichedLog`|net472|4.46μs|2.9ns|11.2ns|0.322| 0|0|2.04 KB| |#5721|`EnrichedLog`|net6.0|2.74μs|2.08ns|8.05ns|0.022| 0|0|1.6 KB| |#5721|`EnrichedLog`|netcoreapp3.1|3.93μs|1.6ns|6.21ns|0.0215| 0|0|1.65 KB| |#5721|`EnrichedLog`|net472|4.47μs|1.76ns|6.82ns|0.322| 0|0|2.04 KB|

Benchmarks.Trace.SpanBenchmark - Faster :tada: Same allocations :heavy_check_mark: #### Faster :tada: in #5721 | Benchmark | base/diff | Base Median (ns) | Diff Median (ns) | Modality | |:----------|-----------:|-----------:|--------:|--------:| | Benchmarks.Trace.SpanBenchmark.StartFinishSpan‑net472 | 1.127 | 707.50 | 627.96 |

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartFinishSpan`|net6.0|391ns|0.306ns|1.19ns|0.00814| 0|0|576 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartFinishSpan`|netcoreapp3.1|585ns|0.328ns|1.18ns|0.00798| 0|0|576 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartFinishSpan`|net472|707ns|0.37ns|1.39ns|0.0916| 0|0|578 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartFinishScope`|net6.0|550ns|0.307ns|1.19ns|0.00963| 0|0|696 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartFinishScope`|netcoreapp3.1|742ns|0.806ns|2.91ns|0.00932| 0|0|696 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`StartFinishScope`|net472|868ns|0.845ns|3.27ns|0.104| 0|0|658 B| |#5721|`StartFinishSpan`|net6.0|406ns|0.127ns|0.491ns|0.00817| 0|0|576 B| |#5721|`StartFinishSpan`|netcoreapp3.1|558ns|0.613ns|2.37ns|0.00787| 0|0|576 B| |#5721|`StartFinishSpan`|net472|629ns|0.542ns|2.1ns|0.0916| 0|0|578 B| |#5721|`StartFinishScope`|net6.0|545ns|0.29ns|1.12ns|0.0098| 0|0|696 B| |#5721|`StartFinishScope`|netcoreapp3.1|704ns|0.24ns|0.929ns|0.00949| 0|0|696 B| |#5721|`StartFinishScope`|net472|894ns|0.535ns|1.85ns|0.104| 0|0|658 B|

Benchmarks.Trace.TraceAnnotationsBenchmark - Slower :warning: Same allocations :heavy_check_mark: #### Slower :warning: in #5721 | Benchmark | diff/base | Base Median (ns) | Diff Median (ns) | Modality | |:----------|-----------:|-----------:|--------:|--------:| | Benchmarks.Trace.TraceAnnotationsBenchmark.RunOnMethodBegin‑net6.0 | 1.185 | 633.60 | 750.61 |

### Raw results | Branch | Method | Toolchain | Mean | StdError | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated | |---------|---------------------------- |-------------- |---------:|---------:|--------:|-------:|------:|------:|----------:| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`RunOnMethodBegin`|net6.0|634ns|0.122ns|0.455ns|0.00984| 0|0|696 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`RunOnMethodBegin`|netcoreapp3.1|912ns|2.94ns|11.4ns|0.0092| 0|0|696 B| |[master](https://github.com/DataDog/dd-trace-dotnet/tree/3d66935dcb9ebe7b6421e0e3e502122ebbac98a9)|`RunOnMethodBegin`|net472|1.06μs|0.971ns|3.76ns|0.104| 0|0|658 B| |#5721|`RunOnMethodBegin`|net6.0|751ns|0.62ns|2.4ns|0.00963| 0|0|696 B| |#5721|`RunOnMethodBegin`|netcoreapp3.1|916ns|0.439ns|1.7ns|0.00953| 0|0|696 B| |#5721|`RunOnMethodBegin`|net472|1.07μs|0.497ns|1.92ns|0.104| 0|0|658 B|

[datadog-ddstaging[bot]]

Datadog Report

Branch report: maximo/w3c-phase-3 Commit report: 459ca70 Test service: dd-trace-dotnet

:white_check_mark: 0 Failed, 339424 Passed, 1624 Skipped, 14h 17m 29.29s Total Time