Writing to stdout vs writing to file

ConsolePrint.java

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class ConsolePrint {

  private static String line = "very very long line very very long line very very long line very very long line very very long line very very long line very very long line very very long line";

  public static void main(String[] args) throws IOException {
    int count = Integer.valueOf(args[0]);

    long t1 = stdout(count);
    long t2 = file(count);

    System.out.println("lines: " + String.format("%,d", count));
    System.out.println("stdout: " + String.format("%,d", t1) + " ms");
    System.out.println("file: " + String.format("%,d", t2) + " ms");
  }

  private static long stdout(int count) {
    long start = System.currentTimeMillis();
    for (int i = 0; i < count; i++) {
      System.out.println(line);
    }
    long end = System.currentTimeMillis();
    return end - start;
  }

  private static long file(int count) throws IOException {
    byte[] bytes = line.getBytes();
    File tempFile = File.createTempFile("test", "log");
    tempFile.deleteOnExit();
    try (
        FileOutputStream fileOutputStream = new FileOutputStream(tempFile);
        BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(fileOutputStream, 1024 * 64);
    ) {
      long start = System.currentTimeMillis();
      for (int i = 0; i < count; i++) {
        bufferedOutputStream.write(bytes);
      }
      bufferedOutputStream.flush();
      long end = System.currentTimeMillis();
      return end - start;
    }
  }
}

Dockerfile

FROM openjdk:8-alpine
COPY ConsolePrint.java /
RUN javac /ConsolePrint.java
WORKDIR /
ENTRYPOINT ["java", "ConsolePrint"]