package com.jotuntech.sketcher.tests;


public class CacheTest {
	static int[] intArray;
	static short[] shortArray;
	
	public static void main(String[] args) {
		for(int i = 0; i < 1000; i++) {
			test();
		}
	}
	
	static private void fillArrays() {
		intArray = new int[512];
		shortArray = new short[512];
		for(int i = 0; i < 512; ++i) {
			intArray[i] = (int) Math.round(Math.random() * 511d);
			shortArray[i] = (short) Math.round(Math.random() * 511d);
		}
	}

	static private void test() {
		fillArrays();
		long intStart = System.nanoTime();
		for(int i = 0; i < 8192; i++) {
			testInt();
		}
		long intStop = System.nanoTime();
		long intTime = intStop - intStart;
		
		long shortStart = System.nanoTime();
		for(int i = 0; i < 8192; i++) {
			testShort();
		}
		long shortStop = System.nanoTime();
		long shortTime = shortStop - shortStart;
		
		System.err.println("Integer test: " + intTime + " ns");
		System.err.println("Short test: " + shortTime + " ns");
	}

	static private void testInt() {
		for(int i = 0; i < 512; ++i) {
			intArray[i] ^= intArray[i] >> 1;
		}
	}

	static private void testShort() {
		for(int i = 0; i < 512; ++i) {
			shortArray[i] ^= shortArray[i] >> 1;
		}
	}
}