author | thartmann |
Tue, 28 Oct 2014 16:44:39 +0100 | |
changeset 27431 | 5f970b31939c |
parent 26690 | 905d970d7537 |
child 27615 | d7caba003432 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 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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|
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/* |
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* @test |
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* @bug 8054836 |
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* @summary Test to verify correctness of malloc tracking |
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* @key nmt jcmd |
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* @library /testlibrary /testlibrary/whitebox |
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* @ignore 8058251 |
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* @build MallocTrackingVerify |
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* @run main ClassFileInstaller sun.hotspot.WhiteBox |
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocTrackingVerify |
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* |
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*/ |
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import java.util.ArrayList; |
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import java.util.Random; |
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|
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import com.oracle.java.testlibrary.*; |
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import sun.hotspot.WhiteBox; |
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public class MallocTrackingVerify { |
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private static int MAX_ALLOC = 4 * 1024; |
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static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>(); |
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static long mallocd_total = 0; |
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public static WhiteBox wb = WhiteBox.getWhiteBox(); |
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|
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public static void main(String args[]) throws Exception { |
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OutputAnalyzer output; |
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|
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// Grab my own PID |
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String pid = Integer.toString(ProcessTools.getProcessId()); |
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ProcessBuilder pb = new ProcessBuilder(); |
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|
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Random random = new Random(); |
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// Allocate small amounts of memory with random pseudo call stack |
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while (mallocd_total < MAX_ALLOC) { |
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int size = random.nextInt(31) + 1; |
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long addr = wb.NMTMallocWithPseudoStack(size, random.nextInt()); |
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if (addr != 0) { |
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MallocMemory mem = new MallocMemory(addr, size); |
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mallocd_memory.add(mem); |
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mallocd_total += size; |
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} else { |
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System.out.println("Out of malloc memory"); |
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break; |
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} |
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} |
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pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary" }); |
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output = new OutputAnalyzer(pb.start()); |
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output.shouldContain("Test (reserved=4KB, committed=4KB)"); |
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|
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// Free |
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for (MallocMemory mem : mallocd_memory) { |
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wb.NMTFree(mem.addr()); |
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} |
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// Run 'jcmd <pid> VM.native_memory summary', check for expected output |
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pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, |
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"VM.native_memory", "summary" }); |
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output = new OutputAnalyzer(pb.start()); |
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output.shouldNotContain("Test (reserved="); |
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} |
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static class MallocMemory { |
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private long addr; |
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private int size; |
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MallocMemory(long addr, int size) { |
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this.addr = addr; |
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this.size = size; |
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} |
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long addr() { |
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return this.addr; |
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} |
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int size() { |
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return this.size; |
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} |
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} |
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} |