RandomWritingBenchmarkTest.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
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package parquet.column.values.delta.benchmark;

import com.carrotsearch.junitbenchmarks.BenchmarkOptions;
import com.carrotsearch.junitbenchmarks.BenchmarkRule;
import com.carrotsearch.junitbenchmarks.annotation.AxisRange;
import com.carrotsearch.junitbenchmarks.annotation.BenchmarkMethodChart;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import parquet.column.values.ValuesWriter;
import parquet.column.values.delta.DeltaBinaryPackingValuesWriter;
import parquet.column.values.rle.RunLengthBitPackingHybridValuesWriter;
import java.util.Random;

@AxisRange(min = 0, max = 1)
@BenchmarkMethodChart(filePrefix = "benchmark-encoding-writing-random")
public class RandomWritingBenchmarkTest extends BenchMarkTest{
  public static int blockSize=128;
  public static int miniBlockNum=4;
  @Rule
  public org.junit.rules.TestRule benchmarkRun = new BenchmarkRule();

  @BeforeClass
  public static void prepare() {
    Random random=new Random();
    data = new int[10000 * blockSize];
    for (int i = 0; i < data.length; i++) {
      data[i] = random.nextInt(100) - 200;
    }
  }

  @BenchmarkOptions(benchmarkRounds = 10, warmupRounds = 2)
  @Test
  public void writeDeltaPackingTest(){
    DeltaBinaryPackingValuesWriter writer = new DeltaBinaryPackingValuesWriter(blockSize, miniBlockNum, 100);
    runWriteTest(writer);
  }

  @BenchmarkOptions(benchmarkRounds = 10, warmupRounds = 2)
  @Test
  public void writeRLETest(){
    ValuesWriter writer = new RunLengthBitPackingHybridValuesWriter(32,100);
    runWriteTest(writer);
  }

  @BenchmarkOptions(benchmarkRounds = 10, warmupRounds = 2)
  @Test
  public void writeDeltaPackingTest2(){
    DeltaBinaryPackingValuesWriter writer = new DeltaBinaryPackingValuesWriter(blockSize, miniBlockNum, 100);
    runWriteTest(writer);
  }
}