code: /*
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * 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.reactivex.rxjava3.core;
  
  import java.util.concurrent.TimeUnit;
  
  import org.openjdk.jmh.annotations.*;
  import org.openjdk.jmh.infra.Blackhole;
  
  import io.reactivex.rxjava3.processors.PublishProcessor;
  import io.reactivex.rxjava3.subjects.PublishSubject;
  
  @BenchmarkMode(Mode.Throughput)
  @Warmup(iterations = 5)
  @Measurement(iterations = 5, time = 5, timeUnit = TimeUnit.SECONDS)
  @OutputTimeUnit(TimeUnit.SECONDS)
  @Fork(value = 1)
  @State(Scope.Thread)
  public class PublishProcessorPerf {
  
      PublishProcessor<Integer> unbounded;
  
      PublishProcessor<Integer> bounded;
  
      PublishSubject<Integer> subject;
  
      @Setup
      public void setup(Blackhole bh) {
          unbounded = PublishProcessor.create();
          unbounded.subscribe(new PerfConsumer(bh));
  
          bounded = PublishProcessor.create();
          bounded.subscribe(new PerfBoundedSubscriber(bh, 1000 * 1000));
  
          subject = PublishSubject.create();
          subject.subscribe(new PerfConsumer(bh));
      }
  
      @Benchmark
      public void unbounded1() {
          unbounded.onNext(1);
      }
  
      @Benchmark
      public void unbounded1k() {
          for (int i = 0; i < 1000; i++) {
              unbounded.onNext(1);
          }
      }
  
      @Benchmark
      public void unbounded1m() {
          for (int i = 0; i < 1000000; i++) {
              unbounded.onNext(1);
          }
      }
  
      @Benchmark
      public void bounded1() {
          bounded.onNext(1);
      }
  
      @Benchmark
      public void bounded1k() {
          for (int i = 0; i < 1000; i++) {
              bounded.onNext(1);
          }
      }
  
      @Benchmark
      public void bounded1m() {
          for (int i = 0; i < 1000000; i++) {
              bounded.onNext(1);
          }
      }
  
      @Benchmark
      public void subject1() {
          subject.onNext(1);
      }
  
      @Benchmark
      public void subject1k() {
          for (int i = 0; i < 1000; i++) {
              subject.onNext(1);
          }
      }
  
      @Benchmark
      public void subject1m() {
          for (int i = 0; i < 1000000; i++) {
              subject.onNext(1);
          }
      }
  }
  