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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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/**
* @test
* @bug 8132081
* @summary C2 support for Adler32 on SPARC
*
* @run main/othervm/timeout=600 -Xbatch compiler.intrinsics.zip.TestAdler32 -m
*/
package compiler.intrinsics.zip;
import java.nio.ByteBuffer;
import java.util.zip.Adler32;
import java.util.zip.Checksum;
public class TestAdler32 {
public static void main(String[] args) {
int offset = Integer.getInteger("offset", 0);
int msgSize = Integer.getInteger("msgSize", 512);
boolean multi = false;
int iters = 20000;
int warmupIters = 20000;
if (args.length > 0) {
if (args[0].equals("-m")) {
multi = true;
} else {
iters = Integer.valueOf(args[0]);
}
if (args.length > 1) {
warmupIters = Integer.valueOf(args[1]);
}
}
if (multi) {
test_multi(warmupIters);
return;
}
System.out.println(" offset = " + offset);
System.out.println("msgSize = " + msgSize + " bytes");
System.out.println(" iters = " + iters);
byte[] b = initializedBytes(msgSize, offset);
Adler32 adler0 = new Adler32();
Adler32 adler1 = new Adler32();
Adler32 adler2 = new Adler32();
adler0.update(b, offset, msgSize);
System.out.println("-------------------------------------------------------");
/* warm up */
for (int i = 0; i < warmupIters; i++) {
adler1.reset();
adler1.update(b, offset, msgSize);
}
/* measure performance */
long start = System.nanoTime();
for (int i = 0; i < iters; i++) {
adler1.reset();
adler1.update(b, offset, msgSize);
}
long end = System.nanoTime();
double total = (double)(end - start)/1e9; // in seconds
double thruput = (double)msgSize*iters/1e6/total; // in MB/s
System.out.println("Adler32.update(byte[]) runtime = " + total + " seconds");
System.out.println("Adler32.update(byte[]) throughput = " + thruput + " MB/s");
/* check correctness */
for (int i = 0; i < iters; i++) {
adler1.reset();
adler1.update(b, offset, msgSize);
if (!check(adler0, adler1)) break;
}
report("Adlers", adler0, adler1);
System.out.println("-------------------------------------------------------");
ByteBuffer buf = ByteBuffer.allocateDirect(msgSize);
buf.put(b, offset, msgSize);
buf.flip();
/* warm up */
for (int i = 0; i < warmupIters; i++) {
adler2.reset();
adler2.update(buf);
buf.rewind();
}
/* measure performance */
start = System.nanoTime();
for (int i = 0; i < iters; i++) {
adler2.reset();
adler2.update(buf);
buf.rewind();
}
end = System.nanoTime();
total = (double)(end - start)/1e9; // in seconds
thruput = (double)msgSize*iters/1e6/total; // in MB/s
System.out.println("Adler32.update(ByteBuffer) runtime = " + total + " seconds");
System.out.println("Adler32.update(ByteBuffer) throughput = " + thruput + " MB/s");
/* check correctness */
for (int i = 0; i < iters; i++) {
adler2.reset();
adler2.update(buf);
buf.rewind();
if (!check(adler0, adler2)) break;
}
report("Adlers", adler0, adler1);
System.out.println("-------------------------------------------------------");
}
private static void report(String s, Checksum adler0, Checksum adler1) {
System.out.printf("%s: adler0 = %08x, adler1 = %08x\n",
s, adler0.getValue(), adler1.getValue());
}
private static boolean check(Checksum adler0, Checksum adler1) {
if (adler0.getValue() != adler1.getValue()) {
System.err.printf("ERROR: adler0 = %08x, adler1 = %08x\n",
adler0.getValue(), adler1.getValue());
return false;
}
return true;
}
private static byte[] initializedBytes(int M, int offset) {
byte[] bytes = new byte[M + offset];
for (int i = 0; i < offset; i++) {
bytes[i] = (byte) i;
}
for (int i = offset; i < bytes.length; i++) {
bytes[i] = (byte) (i - offset);
}
return bytes;
}
private static void test_multi(int iters) {
int len1 = 8; // the 8B/iteration loop
int len2 = 32; // the 32B/iteration loop
int len3 = 4096; // the 4KB/iteration loop
byte[] b = initializedBytes(len3*16, 0);
int[] offsets = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 16, 32, 64, 128, 256, 512 };
int[] sizes = { 0, 1, 2, 3, 4, 5, 6, 7,
len1, len1+1, len1+2, len1+3, len1+4, len1+5, len1+6, len1+7,
len1*2, len1*2+1, len1*2+3, len1*2+5, len1*2+7,
len2, len2+1, len2+3, len2+5, len2+7,
len2*2, len2*4, len2*8, len2*16, len2*32, len2*64,
len3, len3+1, len3+3, len3+5, len3+7,
len3*2, len3*4, len3*8,
len1+len2, len1+len2+1, len1+len2+3, len1+len2+5, len1+len2+7,
len1+len3, len1+len3+1, len1+len3+3, len1+len3+5, len1+len3+7,
len2+len3, len2+len3+1, len2+len3+3, len2+len3+5, len2+len3+7,
len1+len2+len3, len1+len2+len3+1, len1+len2+len3+3,
len1+len2+len3+5, len1+len2+len3+7,
(len1+len2+len3)*2, (len1+len2+len3)*2+1, (len1+len2+len3)*2+3,
(len1+len2+len3)*2+5, (len1+len2+len3)*2+7,
(len1+len2+len3)*3, (len1+len2+len3)*3-1, (len1+len2+len3)*3-3,
(len1+len2+len3)*3-5, (len1+len2+len3)*3-7 };
Adler32[] adler0 = new Adler32[offsets.length*sizes.length];
Adler32[] adler1 = new Adler32[offsets.length*sizes.length];
int i, j, k;
System.out.printf("testing %d cases ...\n", offsets.length*sizes.length);
/* set the result from interpreter as reference */
for (i = 0; i < offsets.length; i++) {
for (j = 0; j < sizes.length; j++) {
adler0[i*sizes.length + j] = new Adler32();
adler1[i*sizes.length + j] = new Adler32();
adler0[i*sizes.length + j].update(b, offsets[i], sizes[j]);
}
}
/* warm up the JIT compiler and get result */
for (k = 0; k < iters; k++) {
for (i = 0; i < offsets.length; i++) {
for (j = 0; j < sizes.length; j++) {
adler1[i*sizes.length + j].reset();
adler1[i*sizes.length + j].update(b, offsets[i], sizes[j]);
}
}
}
/* check correctness */
for (i = 0; i < offsets.length; i++) {
for (j = 0; j < sizes.length; j++) {
if (!check(adler0[i*sizes.length + j], adler1[i*sizes.length + j])) {
System.out.printf("offsets[%d] = %d", i, offsets[i]);
System.out.printf("\tsizes[%d] = %d\n", j, sizes[j]);
}
}
}
}
}