OnJava8-Examples/arrays/BadMicroBenchmark.java
2016-01-25 18:05:55 -08:00

22 lines
635 B
Java

// arrays/BadMicroBenchmark.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
import java.util.*;
import static onjava.TimeIt.*;
public class BadMicroBenchmark {
static final int SIZE = 20_000_000;
public static void main(String[] args) {
long[] la = new long[SIZE];
System.out.print("setAll: ");
timeIt(() -> Arrays.setAll(la, n -> n));
System.out.print("parallelSetAll: ");
timeIt(() -> Arrays.parallelSetAll(la, n -> n));
}
}
/* Output:
setAll: 27
parallelSetAll: 53
*/