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1 /* |
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2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved. |
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3 * |
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4 * This code is free software; you can redistribute it and/or modify it |
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5 * under the terms of the GNU General Public License version 2 only, as |
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6 * published by the Free Software Foundation. |
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7 * |
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8 * This code is distributed in the hope that it will be useful, but WITHOUT |
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9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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11 * version 2 for more details (a copy is included in the LICENSE file that |
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12 * accompanied this code). |
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13 * |
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14 * You should have received a copy of the GNU General Public License version |
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15 * 2 along with this work; if not, write to the Free Software Foundation, |
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16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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17 * |
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18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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19 * or visit www.oracle.com if you need additional information or have any |
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20 * questions. |
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21 * |
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22 */ |
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23 |
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24 /* |
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25 * @test TestParallelRegionStride |
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26 * @key gc |
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27 * @requires vm.gc.Shenandoah |
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28 * |
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29 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahParallelRegionStride=1 -Xmx128m TestParallelRegionStride |
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30 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahParallelRegionStride=10 -Xmx128m TestParallelRegionStride |
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31 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahParallelRegionStride=100 -Xmx128m TestParallelRegionStride |
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32 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:ShenandoahParallelRegionStride=1024 -Xmx128m TestParallelRegionStride |
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33 */ |
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34 |
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35 public class TestParallelRegionStride { |
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36 static final long TARGET_MB = Long.getLong("target", 1000); // 1 Gb allocation |
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37 |
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38 static volatile Object sink; |
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39 |
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40 public static void main(String[] args) throws Exception { |
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41 long count = TARGET_MB * 1024 * 1024 / 16; |
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42 for (long c = 0; c < count; c++) { |
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43 sink = new Object(); |
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44 } |
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45 } |
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46 } |