1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
103 throw new RuntimeException();
104 }
105 buf.position(pos);
106 }
107
108 public static void main(String[] args) {
109 int len = 1024 * 32;
110 int iters = 1;
111 if (args.length != 0 && "-benchmark".equals(args[0]))
112 iters = 100000;
113 Adler32 adler32 = new Adler32();
114 CRC32 crc32 = new CRC32();
115 Random rdm = new Random();
116 byte[] data = new byte[len];
117 new Random().nextBytes(data);
118 ByteBuffer buf;
119
120 System.out.println("---------- Adler32 ----------");
121 System.out.print("Warmup...");
122 time(adler32, data, iters, len);
123 time(adler32, ByteBuffer.wrap(data), iters);
124 buf = ByteBuffer.allocateDirect(len);
125 buf.put(data, 0, len);
126 buf.flip();
127 time(adler32, buf, iters);
128 System.out.println("\n");
129
130 System.out.println("Length byte[](ns/len) ByteBuffer(direct) ByteBuffer");
131 for (int testlen = 1; testlen < data.length; testlen <<= 1) {
132 System.out.print(testlen + "\t");
133 long baT = time(adler32, data, iters, testlen);
134 long baV = adler32.getValue();
135 System.out.print("\t");
136
137 buf = ByteBuffer.allocateDirect(testlen);
138 buf.put(data, 0, testlen);
139 buf.flip();
140 long bbdT = time(adler32, buf, iters);
141 long bbdV = adler32.getValue();
142 if (baV != bbdV) {
145 }
146 System.out.printf(" (%.2f)", (float)bbdT/baT);
147 testPosLimit(adler32, buf);
148
149 buf = ByteBuffer.allocate(testlen);
150 buf.put(data, 0, testlen);
151 buf.flip();
152 long bbT = time(adler32, buf, iters);
153 long bbV = adler32.getValue();
154 if (baV != bbV) {
155 System.out.printf("%nFAILED: baV=%x,bbV=%x%n", baV, bbV);
156 throw new RuntimeException();
157 }
158 testPosLimit(adler32, buf);
159 System.out.printf(" (%.2f) checksum=%x%n", (float)bbT/baT, bbV);
160 }
161
162 System.out.println("\n---------- CRC32 ----------");
163 System.out.print("Warmup...");
164 time(crc32, data, iters, len);
165 time(crc32, ByteBuffer.wrap(data), iters);
166 buf = ByteBuffer.allocateDirect(len);
167 buf.put(data, 0, len);
168 buf.flip();
169 time(crc32, buf, iters);
170 System.out.println("\n");
171
172
173 System.out.println("Length byte[](ns/len) ByteBuffer(direct) ByteBuffer");
174 for (int testlen = 1; testlen < data.length; testlen <<= 1) {
175 System.out.print(testlen + "\t");
176 long baT = time(crc32, data, iters, testlen);
177 long baV = crc32.getValue();
178 System.out.print("\t");
179
180 buf = ByteBuffer.allocateDirect(testlen);
181 buf.put(data, 0, testlen);
182 buf.flip();
183 long bbdT = time(crc32, buf, iters);
184 long bbdV = crc32.getValue();
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1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
103 throw new RuntimeException();
104 }
105 buf.position(pos);
106 }
107
108 public static void main(String[] args) {
109 int len = 1024 * 32;
110 int iters = 1;
111 if (args.length != 0 && "-benchmark".equals(args[0]))
112 iters = 100000;
113 Adler32 adler32 = new Adler32();
114 CRC32 crc32 = new CRC32();
115 Random rdm = new Random();
116 byte[] data = new byte[len];
117 new Random().nextBytes(data);
118 ByteBuffer buf;
119
120 System.out.println("---------- Adler32 ----------");
121 System.out.print("Warmup...");
122 time(adler32, data, iters, len);
123 time(adler32, data, 2*iters, 16); // warmup short case, too
124 time(adler32, ByteBuffer.wrap(data), iters);
125 buf = ByteBuffer.allocateDirect(len);
126 buf.put(data, 0, len);
127 buf.flip();
128 time(adler32, buf, iters);
129 System.out.println("\n");
130
131 System.out.println("Length byte[](ns/len) ByteBuffer(direct) ByteBuffer");
132 for (int testlen = 1; testlen < data.length; testlen <<= 1) {
133 System.out.print(testlen + "\t");
134 long baT = time(adler32, data, iters, testlen);
135 long baV = adler32.getValue();
136 System.out.print("\t");
137
138 buf = ByteBuffer.allocateDirect(testlen);
139 buf.put(data, 0, testlen);
140 buf.flip();
141 long bbdT = time(adler32, buf, iters);
142 long bbdV = adler32.getValue();
143 if (baV != bbdV) {
146 }
147 System.out.printf(" (%.2f)", (float)bbdT/baT);
148 testPosLimit(adler32, buf);
149
150 buf = ByteBuffer.allocate(testlen);
151 buf.put(data, 0, testlen);
152 buf.flip();
153 long bbT = time(adler32, buf, iters);
154 long bbV = adler32.getValue();
155 if (baV != bbV) {
156 System.out.printf("%nFAILED: baV=%x,bbV=%x%n", baV, bbV);
157 throw new RuntimeException();
158 }
159 testPosLimit(adler32, buf);
160 System.out.printf(" (%.2f) checksum=%x%n", (float)bbT/baT, bbV);
161 }
162
163 System.out.println("\n---------- CRC32 ----------");
164 System.out.print("Warmup...");
165 time(crc32, data, iters, len);
166 time(crc32, data, 2*iters, 16); // warmup short case, too
167 time(crc32, ByteBuffer.wrap(data), iters);
168 buf = ByteBuffer.allocateDirect(len);
169 buf.put(data, 0, len);
170 buf.flip();
171 time(crc32, buf, iters);
172 System.out.println("\n");
173
174
175 System.out.println("Length byte[](ns/len) ByteBuffer(direct) ByteBuffer");
176 for (int testlen = 1; testlen < data.length; testlen <<= 1) {
177 System.out.print(testlen + "\t");
178 long baT = time(crc32, data, iters, testlen);
179 long baV = crc32.getValue();
180 System.out.print("\t");
181
182 buf = ByteBuffer.allocateDirect(testlen);
183 buf.put(data, 0, testlen);
184 buf.flip();
185 long bbdT = time(crc32, buf, iters);
186 long bbdV = crc32.getValue();
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