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annotate test/gc/metaspace/ClassMetaspaceSizeInJmapHeap.java @ 8733:9def4075da6d

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8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>
author tamao
date Tue, 05 Mar 2013 15:36:56 -0800
parents 9a094d29af19
children 8bf6338972ce
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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 ClassMetaspaceSizeInJmapHeap
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26 * @bug 8004924
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27 * @summary Checks that jmap -heap contains the flag ClassMetaspaceSize
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28 * @library /testlibrary
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29 * @run main/othervm -XX:ClassMetaspaceSize=50m ClassMetaspaceSizeInJmapHeap
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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 import java.nio.file.*;
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34 import java.io.File;
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35 import java.nio.charset.Charset;
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36 import java.util.List;
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37
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38 public class ClassMetaspaceSizeInJmapHeap {
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39 public static void main(String[] args) throws Exception {
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40 String pid = Integer.toString(ProcessTools.getProcessId());
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41
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42 ProcessBuilder pb = new ProcessBuilder();
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43 pb.command(JDKToolFinder.getJDKTool("jmap"), "-heap", pid);
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44
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45 File out = new File("ClassMetaspaceSizeInJmapHeap.stdout.txt");
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46 pb.redirectOutput(out);
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47
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48 File err = new File("ClassMetaspaceSizeInJmapHeap.stderr.txt");
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49 pb.redirectError(err);
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50
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51 run(pb);
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52
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53 OutputAnalyzer output = new OutputAnalyzer(read(out));
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54 output.shouldContain("ClassMetaspaceSize = 52428800 (50.0MB)");
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55 out.delete();
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56 }
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57
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58 private static void run(ProcessBuilder pb) throws Exception {
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59 Process p = pb.start();
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60 p.waitFor();
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61 int exitValue = p.exitValue();
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62 if (exitValue != 0) {
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63 throw new Exception("jmap -heap exited with error code: " + exitValue);
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64 }
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65 }
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66
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67 private static String read(File f) throws Exception {
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68 Path p = f.toPath();
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69 List<String> lines = Files.readAllLines(p, Charset.defaultCharset());
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70
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71 StringBuilder sb = new StringBuilder();
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72 for (String line : lines) {
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73 sb.append(line).append('\n');
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74 }
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75 return sb.toString();
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76 }
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77 }