120 lines
4.6 KiB
C#
120 lines
4.6 KiB
C#
// <copyright file="SamplerBenchmarks.cs" company="OpenTelemetry Authors">
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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using System.Diagnostics;
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using BenchmarkDotNet.Attributes;
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using OpenTelemetry;
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using OpenTelemetry.Trace;
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/*
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// * Summary *
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BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19044.1889 (21H2)
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Intel Core i7-4790 CPU 3.60GHz (Haswell), 1 CPU, 8 logical and 4 physical cores
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.NET SDK=7.0.100-preview.7.22377.5
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[Host] : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
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DefaultJob : .NET 6.0.8 (6.0.822.36306), X64 RyuJIT
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| Method | Mean | Error | StdDev | Gen 0 | Allocated |
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|------------------------------ |---------:|--------:|--------:|-------:|----------:|
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| SamplerNotModifyingTraceState | 398.6 ns | 7.48 ns | 7.68 ns | 0.0782 | 328 B |
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| SamplerModifyingTraceState | 411.8 ns | 2.38 ns | 2.11 ns | 0.0782 | 328 B |
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| SamplerAppendingTraceState | 428.5 ns | 2.54 ns | 2.25 ns | 0.0916 | 384 B |
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*/
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namespace Benchmarks.Trace
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{
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public class SamplerBenchmarks
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{
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private readonly ActivitySource sourceNotModifyTracestate = new("SamplerNotModifyingTraceState");
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private readonly ActivitySource sourceModifyTracestate = new("SamplerModifyingTraceState");
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private readonly ActivitySource sourceAppendTracestate = new("SamplerAppendingTraceState");
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private readonly ActivityContext parentContext = new ActivityContext(ActivityTraceId.CreateRandom(), ActivitySpanId.CreateRandom(), ActivityTraceFlags.Recorded, "a=b", true);
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public SamplerBenchmarks()
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{
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var testSamplerNotModifyTracestate = new TestSampler
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{
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SamplingAction = (samplingParams) =>
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{
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return new SamplingResult(SamplingDecision.RecordAndSample);
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},
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};
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var testSamplerModifyTracestate = new TestSampler
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{
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SamplingAction = (samplingParams) =>
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{
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return new SamplingResult(SamplingDecision.RecordAndSample, "a=b");
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},
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};
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var testSamplerAppendTracestate = new TestSampler
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{
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SamplingAction = (samplingParams) =>
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{
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return new SamplingResult(SamplingDecision.RecordAndSample, samplingParams.ParentContext.TraceState + ",addedkey=bar");
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},
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};
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Sdk.CreateTracerProviderBuilder()
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.SetSampler(testSamplerNotModifyTracestate)
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.AddSource(this.sourceNotModifyTracestate.Name)
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.Build();
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Sdk.CreateTracerProviderBuilder()
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.SetSampler(testSamplerModifyTracestate)
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.AddSource(this.sourceModifyTracestate.Name)
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.Build();
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Sdk.CreateTracerProviderBuilder()
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.SetSampler(testSamplerAppendTracestate)
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.AddSource(this.sourceAppendTracestate.Name)
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.Build();
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}
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[Benchmark]
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public void SamplerNotModifyingTraceState()
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{
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using var activity = this.sourceNotModifyTracestate.StartActivity("Benchmark", ActivityKind.Server, this.parentContext);
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}
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[Benchmark]
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public void SamplerModifyingTraceState()
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{
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using var activity = this.sourceModifyTracestate.StartActivity("Benchmark", ActivityKind.Server, this.parentContext);
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}
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[Benchmark]
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public void SamplerAppendingTraceState()
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{
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using var activity = this.sourceAppendTracestate.StartActivity("Benchmark", ActivityKind.Server, this.parentContext);
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}
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internal class TestSampler : Sampler
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{
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public Func<SamplingParameters, SamplingResult> SamplingAction { get; set; }
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public override SamplingResult ShouldSample(in SamplingParameters samplingParameters)
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{
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return this.SamplingAction?.Invoke(samplingParameters) ?? new SamplingResult(SamplingDecision.RecordAndSample);
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}
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}
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}
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}
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