8215140: Port missing crypto JMH micros from jmh-jdk-microbenchmarks
Reviewed-by: redestad
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package org.openjdk.bench.javax.crypto.full;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Setup;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class MessageDigestBench extends CryptoBase {
public static final int SET_SIZE = 128;
@Param({"MD5", "SHA", "SHA-256", "SHA-384", "SHA-512"})
private String algorithm;
/*
* Note: dataSize value shouldn't be small unless you want to evaluate MessageDigest.getInstance performance.
* Small value causes large impact of MessageDigest.getInstance including lock contention in multi-threaded
* execution.
*/
@Param({""+1024*1024})
int dataSize;
private byte[][] data;
int index = 0;
@Setup
public void setup() {
setupProvider();
data = fillRandom(new byte[SET_SIZE][dataSize]);
}
@Benchmark
public byte[] digest() throws NoSuchAlgorithmException {
MessageDigest md = (prov == null) ? MessageDigest.getInstance(algorithm) : MessageDigest.getInstance(algorithm, prov);
byte[] d = data[index];
index = (index +1) % SET_SIZE;
return md.digest(d);
}
}