63 lines
1.9 KiB
Java
63 lines
1.9 KiB
Java
//
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// Copyright (c) 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.vm.gc;
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import java.util.Arrays;
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import java.util.concurrent.TimeUnit;
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import org.openjdk.jmh.annotations.*;
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@OutputTimeUnit(TimeUnit.MINUTES)
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@State(Scope.Thread)
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@Fork(jvmArgs = {"-Xmx256m", "-XX:+UseLargePages", "-XX:LargePageSizeInBytes=1g", "-Xlog:pagesize"}, value = 5)
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public class MicroLargePages {
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@Param({"2097152"})
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public int ARRAYSIZE;
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@Param({"1", "2", "4"})
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public int NUM;
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public long[][] INP;
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public long[][] OUT;
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@Setup(Level.Trial)
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public void BmSetup() {
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INP = new long[NUM][ARRAYSIZE];
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OUT = new long[NUM][ARRAYSIZE];
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for (int i = 0; i < NUM; i++) {
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Arrays.fill(INP[i], 10);
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}
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}
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@Benchmark
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public void micro_HOP_DIST_4KB() {
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for (int i = 0; i < NUM; i += 1) {
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for (int j = 0; j < ARRAYSIZE; j += 512) {
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OUT[i][j] = INP[i][j];
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}
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}
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}
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}
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