Method main

java/org/brotli/integration/Benchmark.java:49–116

(String... args)

  }

  public static void main(String... args) throws IOException {
    if (args.length == 0) {
      System.out.println("Usage: benchmark <corpus>");
      return;
    }
    File corpusDir = new File(args[0]);
    ArrayList<String> fileNames = new ArrayList<String>();
    File[] filesList = corpusDir.listFiles();
    if (filesList == null) {
      System.out.println("'" + args[0] + "' is not a directory");
      return;
    }
    for (File file : filesList) {
      if (!file.isFile()) {
        continue;
      }
      String fileName = file.getAbsolutePath();
      if (!fileName.endsWith(".brotli")) {
        continue;
      }
      fileNames.add(fileName);
    }
    int fileCount = fileNames.size();
    if (fileCount == 0) {
      System.out.println("No files found");
      return;
    }
    byte[][] files = new byte[fileCount][];
    for (int i = 0; i < fileCount; ++i) {
      files[i] = readFile(fileNames.get(i));
    }

    ByteArrayOutputStream baos = new ByteArrayOutputStream(65536);
    byte[] buffer = new byte[65536];

    int warmupRepeat = 10;
    long bytesDecoded = 0;
    for (int i = 0; i < warmupRepeat; ++i) {
      bytesDecoded = 0;
      for (int j = 0; j < fileCount; ++j) {
        baos.reset();
        bytesDecoded += decodeBytes(new ByteArrayInputStream(files[j]), baos, buffer);
      }
    }

    int repeat = 100;

    long bestTime = Long.MAX_VALUE;
    for (int i = 0; i < repeat; ++i) {
      long start = System.nanoTime();
      for (int j = 0; j < fileCount; ++j) {
        baos.reset();
        decodeBytes(new ByteArrayInputStream(files[j]), baos, buffer);
      }
      long end = System.nanoTime();
      long timeDelta = end - start;
      if (timeDelta < bestTime) {
        bestTime = timeDelta;