view src/main/java/org/openjdk/gcbench/runtime/writes/Volatile.java @ 88:583fef4276f5

Update license and copyright headers.
author shade
date Wed, 22 Nov 2017 15:58:02 +0100
parents 1e757307727c
children 14c1bb4faa6e
line wrap: on
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/*
 * Copyright (c) 2017, Red Hat Inc. 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
 * questions.
 */
package org.openjdk.gcbench.runtime.writes;

import org.openjdk.jmh.annotations.*;

import java.util.concurrent.TimeUnit;

import static org.openjdk.gcbench.util.Sinks.sink;

@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Fork(1)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Threads(1)
@State(Scope.Thread)
public class Volatile {

    Target target;

    @Setup
    public void setup() {
        target = new Target();
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_none() {
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_boolean() {
        target.f_boolean = true;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_byte() {
        target.f_byte = 42;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_char() {
        target.f_char = 'A';
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_short() {
        target.f_short = 42;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_int() {
        target.f_int = 42;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_float() {
        target.f_float = 42f;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_long() {
        target.f_long = 42L;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_double() {
        target.f_double = 42D;
    }

    @Benchmark
    @CompilerControl(CompilerControl.Mode.DONT_INLINE)
    public void test_Object() {
        target.f_Object = target;
    }

    static class Target {
        volatile boolean f_boolean;
        volatile byte f_byte;
        volatile short f_short;
        volatile char f_char;
        volatile int f_int;
        volatile float f_float;
        volatile long f_long;
        volatile double f_double;
        volatile Object f_Object;
    }

}