| /* |
| * 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.BlankSpan; |
| 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 io.opencensus.trace.SpanBuilder} and {@link Span}. */ |
| @State(Scope.Benchmark) |
| public class StartEndSpanBenchmark { |
| private static final String SPAN_NAME = "MySpanName"; |
| |
| @State(Scope.Benchmark) |
| public static class Data { |
| private Tracer tracer; |
| private Span rootSpan = BlankSpan.INSTANCE; |
| |
| @Param({"impl", "impl-lite"}) |
| String implementation; |
| |
| @Setup |
| public void setup() { |
| tracer = BenchmarksUtil.getTracer(implementation); |
| |
| rootSpan = |
| tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, null) |
| .setSampler(Samplers.neverSample()) |
| .startSpan(); |
| } |
| |
| @TearDown |
| public void doTearDown() { |
| checkState(rootSpan != BlankSpan.INSTANCE, "Uninitialized rootSpan"); |
| rootSpan.end(); |
| } |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of start/end for a non-sampled root {@code |
| * Span}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span startEndNonSampledRootSpan(Data data) { |
| Span span = |
| data.tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, null) |
| .setSampler(Samplers.neverSample()) |
| .startSpan(); |
| span.end(); |
| return span; |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of start/end for a root {@code Span} with record |
| * events option. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span startEndRecordEventsRootSpan(Data data) { |
| Span span = |
| data.tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, null) |
| .setSampler(Samplers.neverSample()) |
| .setRecordEvents(true) |
| .startSpan(); |
| span.end(); |
| return span; |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of start/end for a sampled root {@code Span}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span startEndSampledRootSpan(Data data) { |
| Span span = data.tracer.spanBuilder(SPAN_NAME).setSampler(Samplers.alwaysSample()).startSpan(); |
| span.end(); |
| return span; |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of start/end for a non-sampled child {@code |
| * Span}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span startEndNonSampledChildSpan(Data data) { |
| Span span = |
| data.tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, data.rootSpan) |
| .setSampler(Samplers.neverSample()) |
| .startSpan(); |
| span.end(); |
| return span; |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of start/end for a child {@code Span} with |
| * record events option. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span startEndRecordEventsChildSpan(Data data) { |
| Span span = |
| data.tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, data.rootSpan) |
| .setSampler(Samplers.neverSample()) |
| .setRecordEvents(true) |
| .startSpan(); |
| span.end(); |
| return span; |
| } |
| |
| /** |
| * This benchmark attempts to measure performance of start/end for a sampled child {@code Span}. |
| */ |
| @Benchmark |
| @BenchmarkMode(Mode.SampleTime) |
| @OutputTimeUnit(TimeUnit.NANOSECONDS) |
| public Span startEndSampledChildSpan(Data data) { |
| Span span = |
| data.tracer |
| .spanBuilderWithExplicitParent(SPAN_NAME, data.rootSpan) |
| .setSampler(Samplers.alwaysSample()) |
| .startSpan(); |
| span.end(); |
| return span; |
| } |
| } |