Igor Ignatyev | 072459a | 2018-05-17 14:52:47 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | * or visit www.oracle.com if you need additional information or have any |
| 21 | * questions. |
| 22 | */ |
| 23 | |
| 24 | |
| 25 | /* |
| 26 | * @test |
| 27 | * @key stress gc |
| 28 | * |
| 29 | * @summary converted from VM Testbase gc/gctests/ThreadGC. |
| 30 | * VM Testbase keywords: [gc, stress, stressopt, nonconcurrent] |
| 31 | * VM Testbase readme: |
| 32 | * This tests attempts to stress the garbage collector my making |
| 33 | * synchronous calls to the garbage collector after producing garbage. |
| 34 | * The garbage collector is invoked in a separate thread. |
| 35 | * The test runs for one minute (see nsk.share.runner.ThreadsRunner and |
| 36 | * nsk.share.runner.RunParams. It passes if no exceptions are generated. |
| 37 | * |
| 38 | * @library /vmTestbase |
| 39 | * /test/lib |
| 40 | * @run driver jdk.test.lib.FileInstaller . . |
| 41 | * @run main/othervm gc.gctests.ThreadGC.ThreadGC -gp random(arrays) -ms low |
| 42 | */ |
| 43 | |
| 44 | package gc.gctests.ThreadGC; |
| 45 | |
| 46 | import nsk.share.gc.*; |
| 47 | import nsk.share.gc.gp.*; |
| 48 | import java.util.*; |
| 49 | |
| 50 | public class ThreadGC extends ThreadedGCTest implements GarbageProducerAware, MemoryStrategyAware { |
| 51 | private GarbageProducer garbageProducer; |
| 52 | private MemoryStrategy memoryStrategy; |
| 53 | private Reclaimer reclaimer; |
| 54 | private int count; |
| 55 | private long size; |
| 56 | |
| 57 | private class Devourer implements Runnable { |
| 58 | private Object[] arr = null; |
| 59 | private int index; |
| 60 | |
| 61 | public void run() { |
| 62 | if (arr == null || index >= count) { |
| 63 | arr = null; |
| 64 | arr = new Object[count]; |
| 65 | index = 0; |
| 66 | synchronized (reclaimer) { |
| 67 | reclaimer.notify(); |
| 68 | } |
| 69 | } |
| 70 | arr[index] = garbageProducer.create(size); |
| 71 | ++index; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | private class Reclaimer implements Runnable { |
| 76 | private long waitTime = 1000; |
| 77 | |
| 78 | public void run() { |
| 79 | try { |
| 80 | synchronized (this) { |
| 81 | this.wait(waitTime); |
| 82 | } |
| 83 | } catch (InterruptedException e) { |
| 84 | } |
| 85 | System.gc(); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | protected Runnable createRunnable(int i) { |
| 90 | if (i == 0) |
| 91 | return new Devourer(); |
| 92 | else if (i == 1) { |
| 93 | reclaimer = new Reclaimer(); |
| 94 | return reclaimer; |
| 95 | } else |
| 96 | return null; |
| 97 | } |
| 98 | |
| 99 | public void run() { |
| 100 | size = GarbageUtils.getArraySize(runParams.getTestMemory(), memoryStrategy); |
| 101 | count = GarbageUtils.getArrayCount(runParams.getTestMemory(), memoryStrategy); |
| 102 | runParams.setIterations(count); |
| 103 | super.run(); |
| 104 | } |
| 105 | |
| 106 | public static void main(String[] args) { |
| 107 | GC.runTest(new ThreadGC(), args); |
| 108 | } |
| 109 | |
| 110 | public void setGarbageProducer(GarbageProducer garbageProducer) { |
| 111 | this.garbageProducer = garbageProducer; |
| 112 | } |
| 113 | |
| 114 | public void setMemoryStrategy(MemoryStrategy memoryStrategy) { |
| 115 | this.memoryStrategy = memoryStrategy; |
| 116 | } |
| 117 | |
| 118 | } |