OnJava8-Examples/validating/BadMicroBenchmark.java at master · xinan-w/OnJava8-Examples · GitHub

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// validating/BadMicroBenchmark.java

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// {ExcludeFromTravisCI}

import java.util.*;

import onjava.Timer;

public class BadMicroBenchmark {

static final int SIZE = 250_000_000;

public static void main(String[] args) {

try { // For machines with insufficient memory

long[] la = new long[SIZE];

System.out.println("setAll: " +

Timer.duration(() ->

Arrays.setAll(la, n -> n)));

System.out.println("parallelSetAll: " +

Timer.duration(() ->

Arrays.parallelSetAll(la, n -> n)));

} catch(OutOfMemoryError e) {

System.out.println("Insufficient memory");

System.exit(0);

}

/* Output:

Insufficient memory

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