| /* |
| * Copyright 2017, OpenCensus Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package io.opencensus.benchmarks.trace; |
| |
| import static com.google.common.base.Preconditions.checkState; |
| |
| import io.opencensus.trace.AttributeValue; |
| import io.opencensus.trace.BlankSpan; |
| import io.opencensus.trace.Link; |
| import io.opencensus.trace.MessageEvent.Type; |
| import io.opencensus.trace.Span; |
| import io.opencensus.trace.Tracer; |
| import io.opencensus.trace.samplers.Samplers; |
| import java.util.concurrent.TimeUnit; |
| import org.openjdk.jmh.annotations.Benchmark; |
| import org.openjdk.jmh.annotations.BenchmarkMode; |
| import org.openjdk.jmh.annotations.Mode; |
| import org.openjdk.jmh.annotations.OutputTimeUnit; |
| import org.openjdk.jmh.annotations.Param; |
| import org.openjdk.jmh.annotations.Scope; |
| import org.openjdk.jmh.annotations.Setup; |
| import org.openjdk.jmh.annotations.State; |
| import org.openjdk.jmh.annotations.TearDown; |
| |
| /** Benchmarks for {@link Span} to record trace events. */ |
| @State(Scope.Benchmark) |
| public class RecordTraceEventsBenchmark { |
| private static final String SPAN_NAME = "MySpanName"; |
| private static final String ANNOTATION_DESCRIPTION = "MyAnnotation"; |
| private static final String ATTRIBUTE_KEY = "MyAttributeKey"; |
| private static final String ATTRIBUTE_VALUE = "MyAttributeValue"; |
| |
| @State(Scope.Benchmark) |
| public static class Data { |
| |
| private Span linkedSpan = BlankSpan.INSTANCE; |
| private Span span = BlankSpan.INSTANCE; |
| |
| @Param({"impl", "impl-lite"}) |
| String implementation; |
| |
| @Param({"true", "false"}) |
| boolean sampled; |
| |
| @Setup |
| public void setup() { |
| Tracer tracer = BenchmarksUtil.getTracer(implementation); |
| linkedSpan = |
| tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, null) |
| .setSampler(sampled ? Samplers.alwaysSample() : Samplers.neverSample()) |
| .startSpan(); |
| span = |
| tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, null) |
| .setSampler(sampled ? Samplers.alwaysSample() : Samplers.neverSample()) |
| .startSpan(); |
| } |
| |
| @TearDown |
| public void doTearDown() { |
| checkState(linkedSpan != BlankSpan.INSTANCE, "Uninitialized linkedSpan"); |
| checkState(span != BlankSpan.INSTANCE, "Uninitialized span"); |
| linkedSpan.end(); |
| span.end(); |
| } |
| } |
| |
| /** This benchmark attempts to measure performance of adding an attribute to the span. */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span putAttribute(Data data) { |
| data.span.putAttribute(ATTRIBUTE_KEY, AttributeValue.stringAttributeValue(ATTRIBUTE_VALUE)); |
| return data.span; |
| } |
| |
| /** This benchmark attempts to measure performance of adding an annotation to the span. */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span addAnnotation(Data data) { |
| data.span.addAnnotation(ANNOTATION_DESCRIPTION); |
| return data.span; |
| } |
| |
| /** This benchmark attempts to measure performance of adding a network event to the span. */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span addMessageEvent(Data data) { |
| data.span.addMessageEvent( |
| io.opencensus.trace.MessageEvent.builder(Type.RECEIVED, 1) |
| .setUncompressedMessageSize(3) |
| .build()); |
| return data.span; |
| } |
| |
| /** This benchmark attempts to measure performance of adding a link to the span. */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span addLink(Data data) { |
| data.span.addLink( |
| Link.fromSpanContext(data.linkedSpan.getContext(), Link.Type.PARENT_LINKED_SPAN)); |
| return data.span; |
| } |
| } |