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20394
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1 /*
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2 * Copyright (c) 2014, 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 * @summary run NMT baseline, allocate memory and verify output from summary.diff
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27 * @key nmt jcmd
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28 * @library /testlibrary /testlibrary/whitebox
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29 * @build JcmdSummaryDiff
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30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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31 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=summary JcmdSummaryDiff
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32 */
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33
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34 import com.oracle.java.testlibrary.*;
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35
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36 import sun.hotspot.WhiteBox;
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37
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38 public class JcmdSummaryDiff {
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39
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40 public static WhiteBox wb = WhiteBox.getWhiteBox();
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41
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42 public static void main(String args[]) throws Exception {
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43 ProcessBuilder pb = new ProcessBuilder();
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44 OutputAnalyzer output;
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45 // Grab my own PID
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46 String pid = Integer.toString(ProcessTools.getProcessId());
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47
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48 long commitSize = 128 * 1024;
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49 long reserveSize = 256 * 1024;
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50 long addr;
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51
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52 // Run 'jcmd <pid> VM.native_memory baseline=true'
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53 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "baseline=true"});
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54 pb.start().waitFor();
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55
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56 output = new OutputAnalyzer(pb.start());
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57 output.shouldContain("Baseline succeeded");
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58
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59 addr = wb.NMTReserveMemory(reserveSize);
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60 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary.diff", "scale=KB"});
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61
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62 output = new OutputAnalyzer(pb.start());
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63 output.shouldContain("Test (reserved=256KB +256KB, committed=0KB)");
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64
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65 wb.NMTCommitMemory(addr, commitSize);
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66 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary.diff", "scale=KB"});
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67
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68 output = new OutputAnalyzer(pb.start());
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69 output.shouldContain("Test (reserved=256KB +256KB, committed=128KB +128KB)");
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70
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71 wb.NMTUncommitMemory(addr, commitSize);
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72 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary.diff", "scale=KB"});
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73
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74 output = new OutputAnalyzer(pb.start());
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75 output.shouldContain("Test (reserved=256KB +256KB, committed=0KB)");
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76
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77 wb.NMTReleaseMemory(addr, reserveSize);
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78 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary.diff", "scale=KB"});
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79
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80 output = new OutputAnalyzer(pb.start());
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81 output.shouldNotContain("Test (reserved=");
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82 }
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83 }
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