com.smoketurner.snowizard.benchmarks.IdWorkerBenchmark Maven / Gradle / Ivy

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/*
 * Copyright © 2013, General Electric Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
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 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the  nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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package com.smoketurner.snowizard.benchmarks;

import com.smoketurner.snowizard.core.IdWorker;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Group;
import org.openjdk.jmh.annotations.GroupThreads;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;

@Measurement(iterations = 5, time = 1)
@Warmup(iterations = 10, time = 1)
@Fork(3)
@BenchmarkMode(Mode.Throughput)
@OutputTimeUnit(TimeUnit.SECONDS)
@State(Scope.Group)
public class IdWorkerBenchmark {

  private final IdWorker worker = IdWorker.builder(1, 1).build();

  @Benchmark
  @Group("no_contention")
  @GroupThreads(1)
  public void no_contention_nextId() throws Exception {
    worker.nextId();
  }

  @Benchmark
  @Group("mild_contention")
  @GroupThreads(2)
  public void mild_contention_nextId() throws Exception {
    worker.nextId();
  }

  @Benchmark
  @Group("high_contention")
  @GroupThreads(8)
  public void high_contention_nextId() throws Exception {
    worker.nextId();
  }

  public static void main(String[] args) throws Exception {
    final Options opt =
        new OptionsBuilder().include(IdWorkerBenchmark.class.getSimpleName()).build();
    new Runner(opt).run();
  }
}