content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.fsmaster;
  
  import alluxio.BaseFileStructure;
  import alluxio.BaseThreadState;
  import alluxio.security.authentication.AuthenticatedClientUser;
  
  import org.openjdk.jmh.annotations.Benchmark;
  import org.openjdk.jmh.annotations.BenchmarkMode;
  import org.openjdk.jmh.annotations.Fork;
  import org.openjdk.jmh.annotations.Level;
  import org.openjdk.jmh.annotations.Measurement;
  import org.openjdk.jmh.annotations.Mode;
  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;
  import org.openjdk.jmh.annotations.Warmup;
  import org.openjdk.jmh.results.format.ResultFormatType;
  import org.openjdk.jmh.runner.Runner;
  import org.openjdk.jmh.runner.RunnerException;
  import org.openjdk.jmh.runner.options.CommandLineOptionException;
  import org.openjdk.jmh.runner.options.CommandLineOptions;
  import org.openjdk.jmh.runner.options.Options;
  import org.openjdk.jmh.runner.options.OptionsBuilder;
  
  import java.util.concurrent.TimeUnit;
  
  /**
   * Benchmarks for {@link alluxio.master.file.FileSystemMaster}.
   */
  @Fork(value = 1, jvmArgsPrepend = "-server")
  @Warmup(iterations = 2, time = 3, timeUnit = TimeUnit.SECONDS)
  @Measurement(iterations = 6, time = 3, timeUnit = TimeUnit.SECONDS)
  @BenchmarkMode(Mode.Throughput)
  public class FileSystemMasterBench {
  
    @State(Scope.Thread)
    public static class ThreadState extends BaseThreadState {
      @Setup(Level.Trial)
      public void setup() {
        AuthenticatedClientUser.set("test");
      }
    }
  
    @State(Scope.Benchmark)
    public static class FileSystem extends BaseFileStructure {
      @Param({"10"})
      public int mDepth;
  
      @Param({"0"})
      public int mWidth;
  
      @Param({"1000"})
      public int mFileCount;
  
      @Param({"ZIPF"})
      public Distribution mDistribution;
      FileSystemMasterBase mBase = new FileSystemMasterBase();
  
      @Setup(Level.Trial)
      public void setup() throws Exception {
        super.init(mDepth, mWidth, mFileCount, mDistribution);
        mBase.init();
        mBase.createPathDepths(mDepth);
        for (int d = 0; d < mDepth + 1; d++) {
          for (int i = 0; i < mFileCount; i++) {
            mBase.createFile(d, i);
          }
        }
      }
  
      @TearDown
      public void tearDown() throws Exception {
        mBase.tearDown();
      }
    }
  
    @Benchmark
    public void getStatusBench(FileSystem fs, ThreadState ts) {
      int depth = ts.nextDepth(fs);
      fs.mBase.getStatus(depth, ts.nextFileId(fs, depth));
    }
  
    public static void main(String[] args) throws RunnerException, CommandLineOptionException {
      Options argsCli = new CommandLineOptions(args);
      Options opts = new OptionsBuilder()
          .parent(argsCli)
          .include(FileSystemMasterBench.class.getName())
          .result("results.json")
          .resultFormat(ResultFormatType.JSON)
          .build();
      new Runner(opts).run();
    }
  }
  