jdk-24/test/micro/org/openjdk/bench/java/security/MessageDigests.java
Claes Redestad 90bd544512 8342958: Use jvmArgs consistently in microbenchmarks
Reviewed-by: ecaspole, jvernee
2024-10-28 22:40:25 +00:00

92 lines
3.3 KiB
Java

/*
* Copyright (c) 2014, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
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package org.openjdk.bench.java.security;
import java.security.DigestException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
/**
* Tests various digester algorithms. Sets Fork parameters as these tests are
* rather allocation intensive. Reduced number of forks and iterations as
* benchmarks are stable.
*/
@State(Scope.Thread)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@Warmup(iterations = 5, time = 1)
@Measurement(iterations = 5, time = 1)
@Fork(jvmArgs = {"-Xms1024m", "-Xmx1024m", "-Xmn768m", "-XX:+UseParallelGC"}, value = 3)
public class MessageDigests {
@Param({"64", "16384"})
private int length;
@Param({"md5", "SHA-1", "SHA-224", "SHA-256", "SHA-384", "SHA-512", "SHA3-256", "SHA3-512"})
private String digesterName;
@Param({"DEFAULT"})
protected String provider;
private byte[] inputBytes;
private MessageDigest digester;
@Setup
public void setup() throws NoSuchAlgorithmException, DigestException, NoSuchProviderException {
inputBytes = new byte[length];
new Random(1234567890).nextBytes(inputBytes);
if ("DEFAULT".equals(provider)) {
digester = MessageDigest.getInstance(digesterName);
} else {
digester = MessageDigest.getInstance(digesterName, provider);
}
}
@Benchmark
public byte[] digest() throws DigestException {
return digester.digest(inputBytes);
}
@Benchmark
public byte[] getAndDigest() throws DigestException, NoSuchAlgorithmException, NoSuchProviderException {
MessageDigest md;
if ("DEFAULT".equals(provider)) {
md = MessageDigest.getInstance(digesterName);
} else {
md = MessageDigest.getInstance(digesterName, provider);
}
return md.digest(inputBytes);
}
}