01: /* Copyright (c) 2001-2005, The HSQL Development Group
02: * All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * Redistributions of source code must retain the above copyright notice, this
08: * list of conditions and the following disclaimer.
09: *
10: * Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: *
14: * Neither the name of the HSQL Development Group nor the names of its
15: * contributors may be used to endorse or promote products derived from this
16: * software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
22: * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29: */
30:
31: package org.hsqldb.test;
32:
33: import java.sql.Timestamp;
34:
35: import org.hsqldb.lib.StopWatch;
36:
37: public class TestObjectSize {
38:
39: public TestObjectSize() {
40:
41: StopWatch sw = new StopWatch();
42: int testCount = 2350000;
43:
44: System.out.println("Fill Memory with Objects ");
45:
46: Object[] objectArray = new Object[testCount];
47:
48: for (int j = 0; j < objectArray.length; j++) {
49: objectArray[j] = new Timestamp(0);
50: }
51:
52: System.out.println("Array Filled " + sw.elapsedTime());
53:
54: for (int j = 0; j < objectArray.length; j++) {
55: objectArray[j] = null;
56: }
57:
58: Object[] objectArray2 = new Object[testCount];
59: Object[] objectArray3 = new Object[testCount];
60: Object[] objectArray4 = new Object[testCount];
61: Object[] objectArray5 = new Object[testCount];
62: Object[] objectArray6 = new Object[testCount];
63:
64: // Object[] objectArray7 = new Object[testCount];
65: short[] shortArray = new short[testCount];
66: byte[] byteArray = new byte[testCount];
67:
68: System.out
69: .println("Fill with Empty Arrays " + sw.elapsedTime());
70: sw.zero();
71: }
72:
73: public static void main(String[] argv) {
74: TestObjectSize ls = new TestObjectSize();
75: }
76: }
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