b438cffdb9
Co-authored-by: Vladimir Ivanov <vaivanov@openjdk.org> Reviewed-by: sviswanathan, ecaspole
62 lines
2.0 KiB
Java
62 lines
2.0 KiB
Java
/*
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* Copyright (c) 2021, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.util;
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import java.util.Random;
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import java.util.concurrent.TimeUnit;
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import java.util.zip.CRC32C;
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import org.openjdk.jmh.annotations.*;
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@BenchmarkMode(Mode.Throughput)
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@OutputTimeUnit(TimeUnit.MILLISECONDS)
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@State(Scope.Thread)
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@Warmup(iterations = 4, time = 2)
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@Measurement(iterations = 4, time = 2)
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@Fork(value = 3)
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public class TestCRC32C {
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private CRC32C crc32c;
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private Random random;
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private byte[] bytes;
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@Param({"64", "128", "256", "512", /* "1024", */ "2048", /* "4096", "8192", */ "16384", /* "32768", */ "65536"})
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private int count;
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public TestCRC32C() {
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crc32c = new CRC32C();
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random = new Random(2147483648L);
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bytes = new byte[1000000];
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random.nextBytes(bytes);
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}
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@Setup(Level.Iteration)
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public void setupBytes() {
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crc32c.reset();
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}
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@Benchmark
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public void testCRC32CUpdate() {
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crc32c.update(bytes, 0, count);
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}
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}
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