159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2010 jMonkeyEngine 359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All rights reserved. 459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Redistribution and use in source and binary forms, with or without 659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * modification, are permitted provided that the following conditions are 759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * met: 859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions of source code must retain the above copyright 1059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer. 1159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions in binary form must reproduce the above copyright 1359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer in the 1459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * documentation and/or other materials provided with the distribution. 1559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 1759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * may be used to endorse or promote products derived from this software 1859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * without specific prior written permission. 1959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 2059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 2459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 2559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 2759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 2859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 3259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage jme3test.app; 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector3f; 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.util.TempVars; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class TestTempVars { 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final int ITERATIONS = 10000000; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final int NANOS_TO_MS = 1000000; 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final Vector3f sumCompute = new Vector3f(); 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void main(String[] args) { 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta long milliseconds, nanos; 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < 4; i++){ 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.gc(); 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// sumCompute.set(0, 0, 0); 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// long nanos = System.nanoTime(); 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// for (int i = 0; i < ITERATIONS; i++) { 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// recursiveMethod(0); 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// } 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// long milliseconds = (System.nanoTime() - nanos) / NANOS_TO_MS; 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// System.out.println("100 million TempVars calls with 5 recursions: " + milliseconds + " ms"); 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// System.out.println(sumCompute); 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sumCompute.set(0, 0, 0); 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nanos = System.nanoTime(); 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < ITERATIONS; i++) { 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta methodThatUsesTempVars(); 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta milliseconds = (System.nanoTime() - nanos) / NANOS_TO_MS; 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.out.println("100 million TempVars calls: " + milliseconds + " ms"); 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.out.println(sumCompute); 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sumCompute.set(0, 0, 0); 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nanos = System.nanoTime(); 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < ITERATIONS; i++) { 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta methodThatUsesAllocation(); 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta milliseconds = (System.nanoTime() - nanos) / NANOS_TO_MS; 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.out.println("100 million allocation calls: " + milliseconds + " ms"); 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.out.println(sumCompute); 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nanos = System.nanoTime(); 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < 10; i++){ 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.gc(); 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta milliseconds = (System.nanoTime() - nanos) / NANOS_TO_MS; 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta System.out.println("cleanup time after allocation calls: " + milliseconds + " ms"); 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void methodThatUsesAllocation(){ 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f vector = new Vector3f(); 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vector.set(0.1f, 0.2f, 0.3f); 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sumCompute.addLocal(vector); 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void recursiveMethod(int recurse) { 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta TempVars vars = TempVars.get(); 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta { 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vars.vect1.set(0.1f, 0.2f, 0.3f); 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (recurse < 4) { 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta recursiveMethod(recurse + 1); 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sumCompute.addLocal(vars.vect1); 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vars.release(); 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static void methodThatUsesTempVars() { 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta TempVars vars = TempVars.get(); 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta { 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vars.vect1.set(0.1f, 0.2f, 0.3f); 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta sumCompute.addLocal(vars.vect1); 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta vars.release(); 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 115