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annotate test/runtime/CompressedOops/CompressedKlassPointerAndOops.java @ 20218:828056cf311f

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8040792: G1: Memory usage calculation uses sizeof(this) instead of sizeof(classname) Summary: A few locations in the code use sizeof(this) which returns the size of the pointer instead of sizeof(classname) which returns the size of the sum of its members. This change fixes these errors and adds a few tests. Reviewed-by: mgerdin, brutisso
author tschatzl
date Mon, 21 Jul 2014 09:40:19 +0200
parents 7944aba7ba41
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test
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26 * @bug 8000968
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27 * @key regression
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28 * @summary NPG: UseCompressedClassPointers asserts with ObjectAlignmentInBytes=32
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29 * @library /testlibrary
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30 */
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31
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32 import com.oracle.java.testlibrary.*;
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33
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34 public class CompressedKlassPointerAndOops {
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36 public static void main(String[] args) throws Exception {
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37
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38 if (!Platform.is64bit()) {
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39 // Can't test this on 32 bit, just pass
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40 System.out.println("Skipping test on 32bit");
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41 return;
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42 }
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43
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44 runWithAlignment(16);
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45 runWithAlignment(32);
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46 runWithAlignment(64);
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47 runWithAlignment(128);
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48 }
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49
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50 private static void runWithAlignment(int alignment) throws Exception {
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51 ProcessBuilder pb;
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52 OutputAnalyzer output;
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53
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54 pb = ProcessTools.createJavaProcessBuilder(
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55 "-XX:+UseCompressedClassPointers",
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56 "-XX:+UseCompressedOops",
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57 "-XX:ObjectAlignmentInBytes=" + alignment,
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58 "-version");
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59
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60 output = new OutputAnalyzer(pb.start());
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61 output.shouldHaveExitValue(0);
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62 }
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63 }