59 lines
2.0 KiB
Java
59 lines
2.0 KiB
Java
/*
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* Copyright (c) 2023, 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.vm.compiler;
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import java.util.concurrent.TimeUnit;
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import java.util.random.RandomGeneratorFactory;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.infra.Blackhole;
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.MICROSECONDS)
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@State(Scope.Thread)
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@Warmup(iterations = 5, time = 1)
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@Measurement(iterations = 5, time = 1)
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@Fork(value = 1)
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public class CMove {
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static final int SIZE = 1000000;
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@Param({"0.003", "0.006", "0.01", "0.02", "0.03", "0.06", "0.1", "0.2", "0.3", "0.6"})
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double freq;
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boolean[] conds;
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@Setup(Level.Iteration)
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public void setup() {
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var r = RandomGeneratorFactory.getDefault().create(1);
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conds = new boolean[SIZE];
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for (int i = 0; i < SIZE; i++) {
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conds[i] = r.nextDouble() < freq;
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}
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}
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@Benchmark
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public void run(Blackhole bh) {
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for (int i = 0; i < conds.length; i++) {
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bh.consume(conds[i] ? 2 : 1);
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}
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}
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} |