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Tyler Yahn
5b808c6ad5
Split from #7316 [Follow guidelines](https://github.com/open-telemetry/opentelemetry-go/blob/a5dcd68ebb2f3669f7685ac7b0f3f1624251a381/CONTRIBUTING.md#encapsulation) and move instrumentation into its own type. ### Benchmarks #### Added `sdk/trace/internal/observ` benchmarks ``` goos: linux goarch: amd64 pkg: go.opentelemetry.io/otel/sdk/trace/internal/observ cpu: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz │ enc-trace-sdk-tracer-obs.out │ │ sec/op │ Tracer/SpanStarted-8 7.436n ± 6% Tracer/SpanLive-8 9.987n ± 8% Tracer/SpanEnded-8 11.32n ± 7% NewTracer-8 87.64n ± 6% geomean 16.48n │ enc-trace-sdk-tracer-obs.out │ │ B/op │ Tracer/SpanStarted-8 0.000 ± 0% Tracer/SpanLive-8 0.000 ± 0% Tracer/SpanEnded-8 0.000 ± 0% NewTracer-8 0.000 ± 0% geomean ¹ ¹ summaries must be >0 to compute geomean │ enc-trace-sdk-tracer-obs.out │ │ allocs/op │ Tracer/SpanStarted-8 0.000 ± 0% Tracer/SpanLive-8 0.000 ± 0% Tracer/SpanEnded-8 0.000 ± 0% NewTracer-8 0.000 ± 0% geomean ¹ ¹ summaries must be >0 to compute geomean ``` #### Existing `sdk/trace` benchmarks ```console > benchstat main.out enc-trace-sdk-tracer-obs.out goos: linux goarch: amd64 pkg: go.opentelemetry.io/otel/sdk/trace cpu: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz │ main.out │ enc-trace-sdk-tracer-obs.out │ │ sec/op │ sec/op vs base │ SpanEnd/ObservabilityEnabled-8 188.5n ± 4% 131.5n ± 32% -30.24% (p=0.000 n=10) TraceStart/ObservabilityEnabled-8 886.9n ± 8% 663.9n ± 2% -25.14% (p=0.000 n=10) geomean 408.9n 295.5n -27.73% │ main.out │ enc-trace-sdk-tracer-obs.out │ │ B/op │ B/op vs base │ SpanEnd/ObservabilityEnabled-8 16.00 ± 0% 0.00 ± 0% -100.00% (p=0.000 n=10) TraceStart/ObservabilityEnabled-8 608.0 ± 0% 576.0 ± 0% -5.26% (p=0.000 n=10) geomean 98.63 ? ¹ ² ¹ summaries must be >0 to compute geomean ² ratios must be >0 to compute geomean │ main.out │ enc-trace-sdk-tracer-obs.out │ │ allocs/op │ allocs/op vs base │ SpanEnd/ObservabilityEnabled-8 1.000 ± 0% 0.000 ± 0% -100.00% (p=0.000 n=10) TraceStart/ObservabilityEnabled-8 5.000 ± 0% 3.000 ± 0% -40.00% (p=0.000 n=10) geomean 2.236 ? ¹ ² ¹ summaries must be >0 to compute geomean ² ratios must be >0 to compute geomean ``` --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>