Package org.apache.mahout.common

Examples of org.apache.mahout.common.TimingStatistics.newCall()

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  public void cloneBenchmark() {
    TimingStatistics stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        vectors[0][i] = vectors[0][i].clone();
        call.end();
      }
    }
    printStats(stats, "Clone", "DenseVector");
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    printStats(stats, "Clone", "DenseVector");
   
    stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        vectors[1][i] = vectors[1][i].clone();
        call.end();
      }
    }
    printStats(stats, "Clone", "RandSparseVector");
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    printStats(stats, "Clone", "RandSparseVector");
   
    stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        vectors[2][i] = vectors[2][i].clone();
        call.end();
      }
    }
    printStats(stats, "Clone", "SeqSparseVector");
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    VectorWritable vec = new VectorWritable();
   
    TimingStatistics stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        vec.set(vectors[0][i]);
        writer.append(one, vec);
        call.end();
      }
    }
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    writer = new SequenceFile.Writer(fs, conf,
      new Path("/tmp/randsparse-vector"), IntWritable.class, VectorWritable.class);
    stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        vec.set(vectors[1][i]);
        writer.append(one, vec);
        call.end();
      }
    }
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    writer = new SequenceFile.Writer(fs, conf,
      new Path("/tmp/seqsparse-vector"), IntWritable.class, VectorWritable.class);
    stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        vec.set(vectors[2][i]);
        writer.append(one, vec);
        call.end();
      }
    }
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    doDeserializeBenchmark("SeqSparseVector", "/tmp/seqsparse-vector");
  }

  private void doDeserializeBenchmark(String name, String pathString) throws IOException {
    TimingStatistics stats = new TimingStatistics();
    TimingStatistics.Call call = stats.newCall();
    Iterator<?> iterator = new SequenceFileValueIterator<Writable>(new Path(pathString), true, new Configuration());
    while (iterator.hasNext()) {
      iterator.next();
      call.end();
      call = stats.newCall();
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    TimingStatistics.Call call = stats.newCall();
    Iterator<?> iterator = new SequenceFileValueIterator<Writable>(new Path(pathString), true, new Configuration());
    while (iterator.hasNext()) {
      iterator.next();
      call.end();
      call = stats.newCall();
    }
    printStats(stats, "Deserialize", name);
  }
 
  public void dotBenchmark() {
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  public void dotBenchmark() {
    double result = 0;
    TimingStatistics stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        result += vectors[0][i].dot(vectors[0][(i + 1) % numVectors]);
        call.end();
      }
    }
    // print result to prevent hotspot from eliminating deadcode
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    printStats(stats, "DotProduct", "DenseVector", "sum = " + result + ' ');
    result = 0;
    stats = new TimingStatistics();
    for (int l = 0; l < loop; l++) {
      for (int i = 0; i < numVectors; i++) {
        TimingStatistics.Call call = stats.newCall();
        result += vectors[1][i].dot(vectors[1][(i + 1) % numVectors]);
        call.end();
      }
    }
    // print result to prevent hotspot from eliminating deadcode
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