1 /* |
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2 * Copyright (c) 2016, 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 TestStressIHOPMultiThread |
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26 * @bug 8148397 |
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27 * @key stress |
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28 * @summary Stress test for IHOP |
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29 * @requires vm.gc=="G1" | vm.gc=="null" |
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30 * @run main/othervm/timeout=200 -Xmx128m -XX:G1HeapWastePercent=0 -XX:G1MixedGCCountTarget=1 |
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31 * -XX:+UseG1GC -XX:G1HeapRegionSize=1m -XX:+G1UseAdaptiveIHOP |
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32 * -Xlog:gc+ihop=debug,gc+ihop+ergo=debug,gc+ergo=debug:TestStressIHOPMultiThread1.log |
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33 * -Dtimeout=2 -DheapUsageMinBound=30 -DheapUsageMaxBound=80 |
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34 * -Dthreads=2 TestStressIHOPMultiThread |
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35 * @run main/othervm/timeout=200 -Xmx256m -XX:G1HeapWastePercent=0 -XX:G1MixedGCCountTarget=1 |
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36 * -XX:+UseG1GC -XX:G1HeapRegionSize=2m -XX:+G1UseAdaptiveIHOP |
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37 * -Xlog:gc+ihop=debug,gc+ihop+ergo=debug,gc+ergo=debug:TestStressIHOPMultiThread2.log |
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38 * -Dtimeout=2 -DheapUsageMinBound=60 -DheapUsageMaxBound=90 |
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39 * -Dthreads=3 TestStressIHOPMultiThread |
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40 * @run main/othervm/timeout=200 -Xmx256m -XX:G1HeapWastePercent=0 -XX:G1MixedGCCountTarget=1 |
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41 * -XX:+UseG1GC -XX:G1HeapRegionSize=4m -XX:-G1UseAdaptiveIHOP |
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42 * -Xlog:gc+ihop=debug,gc+ihop+ergo=debug,gc+ergo=debug:TestStressIHOPMultiThread3.log |
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43 * -Dtimeout=2 -DheapUsageMinBound=40 -DheapUsageMaxBound=90 |
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44 * -Dthreads=5 TestStressIHOPMultiThread |
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45 * @run main/othervm/timeout=200 -Xmx128m -XX:G1HeapWastePercent=0 -XX:G1MixedGCCountTarget=1 |
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46 * -XX:+UseG1GC -XX:G1HeapRegionSize=8m -XX:+G1UseAdaptiveIHOP |
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47 * -Xlog:gc+ihop=debug,gc+ihop+ergo=debug,gc+ergo=debug:TestStressIHOPMultiThread4.log |
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48 * -Dtimeout=2 -DheapUsageMinBound=20 -DheapUsageMaxBound=90 |
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49 * -Dthreads=10 TestStressIHOPMultiThread |
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50 * @run main/othervm/timeout=200 -Xmx512m -XX:G1HeapWastePercent=0 -XX:G1MixedGCCountTarget=1 |
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51 * -XX:+UseG1GC -XX:G1HeapRegionSize=16m -XX:+G1UseAdaptiveIHOP |
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52 * -Xlog:gc+ihop=debug,gc+ihop+ergo=debug,gc+ergo=debug:TestStressIHOPMultiThread5.log |
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53 * -Dtimeout=2 -DheapUsageMinBound=20 -DheapUsageMaxBound=90 |
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54 * -Dthreads=17 TestStressIHOPMultiThread |
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55 */ |
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56 |
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57 import java.util.ArrayList; |
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58 import java.util.LinkedList; |
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59 import java.util.List; |
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60 |
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61 /** |
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62 * Stress test for Adaptive IHOP. Starts a number of threads that fill and free |
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63 * specified amount of memory. Tests work with enabled IHOP logging. |
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64 * |
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65 */ |
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66 public class TestStressIHOPMultiThread { |
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67 |
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68 public final static List<Object> GARBAGE = new LinkedList<>(); |
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69 |
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70 private final long HEAP_SIZE; |
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71 // Amount of memory to be allocated before iterations start |
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72 private final long HEAP_PREALLOC_SIZE; |
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73 // Amount of memory to be allocated and freed during iterations |
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74 private final long HEAP_ALLOC_SIZE; |
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75 private final int CHUNK_SIZE = 100000; |
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76 |
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77 private final int TIMEOUT; |
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78 private final int THREADS; |
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79 private final int HEAP_LOW_BOUND; |
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80 private final int HEAP_HIGH_BOUND; |
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81 |
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82 private volatile boolean running = true; |
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83 private final List<AllocationThread> threads; |
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84 |
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85 public static void main(String[] args) throws InterruptedException { |
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86 new TestStressIHOPMultiThread().start(); |
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87 |
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88 } |
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89 |
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90 TestStressIHOPMultiThread() { |
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91 |
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92 TIMEOUT = Integer.getInteger("timeout") * 60; |
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93 THREADS = Integer.getInteger("threads"); |
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94 HEAP_LOW_BOUND = Integer.getInteger("heapUsageMinBound"); |
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95 HEAP_HIGH_BOUND = Integer.getInteger("heapUsageMaxBound"); |
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96 HEAP_SIZE = Runtime.getRuntime().maxMemory(); |
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97 |
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98 HEAP_PREALLOC_SIZE = HEAP_SIZE * HEAP_LOW_BOUND / 100; |
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99 HEAP_ALLOC_SIZE = HEAP_SIZE * (HEAP_HIGH_BOUND - HEAP_LOW_BOUND) / 100; |
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100 |
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101 threads = new ArrayList<>(THREADS); |
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102 } |
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103 |
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104 public void start() throws InterruptedException { |
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105 fill(); |
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106 createThreads(); |
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107 waitForStress(); |
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108 stressDone(); |
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109 waitForFinish(); |
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110 } |
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111 |
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112 /** |
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113 * Fills HEAP_PREALLOC_SIZE bytes of garbage. |
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114 */ |
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115 private void fill() { |
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116 long allocated = 0; |
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117 while (allocated < HEAP_PREALLOC_SIZE) { |
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118 GARBAGE.add(new byte[CHUNK_SIZE]); |
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119 allocated += CHUNK_SIZE; |
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120 } |
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121 } |
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122 |
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123 /** |
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124 * Creates a number of threads which will fill and free amount of memory. |
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125 */ |
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126 private void createThreads() { |
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127 for (int i = 0; i < THREADS; ++i) { |
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128 System.out.println("Create thread " + i); |
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129 AllocationThread thread =new TestStressIHOPMultiThread.AllocationThread(i, HEAP_ALLOC_SIZE / THREADS); |
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130 // Put reference to thread garbage into common garbage for avoiding possible optimization. |
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131 GARBAGE.add(thread.getList()); |
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132 threads.add(thread); |
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133 } |
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134 threads.forEach(t -> t.start()); |
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135 } |
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136 |
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137 /** |
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138 * Wait each thread for finishing |
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139 */ |
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140 private void waitForFinish() { |
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141 threads.forEach(thread -> { |
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142 thread.silentJoin(); |
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143 }); |
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144 } |
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145 |
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146 private boolean isRunning() { |
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147 return running; |
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148 } |
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149 |
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150 private void stressDone() { |
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151 running = false; |
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152 } |
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153 |
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154 private void waitForStress() throws InterruptedException { |
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155 Thread.sleep(TIMEOUT * 1000); |
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156 } |
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157 |
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158 private class AllocationThread extends Thread { |
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159 |
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160 private final List<Object> garbage; |
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161 |
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162 private final long amountOfGarbage; |
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163 private final int threadId; |
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164 |
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165 public AllocationThread(int id, long amount) { |
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166 super("Thread " + id); |
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167 threadId = id; |
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168 amountOfGarbage = amount; |
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169 garbage = new LinkedList<>(); |
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170 } |
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171 |
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172 /** |
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173 * Returns list of garbage. |
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174 * @return List with thread garbage. |
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175 */ |
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176 public List<Object> getList(){ |
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177 return garbage; |
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178 } |
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179 |
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180 @Override |
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181 public void run() { |
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182 System.out.println("Start the thread " + threadId); |
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183 while (TestStressIHOPMultiThread.this.isRunning()) { |
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184 allocate(amountOfGarbage); |
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185 free(); |
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186 } |
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187 } |
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188 |
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189 private void silentJoin() { |
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190 System.out.println("Join the thread " + threadId); |
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191 try { |
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192 join(); |
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193 } catch (InterruptedException ie) { |
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194 throw new RuntimeException(ie); |
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195 } |
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196 } |
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197 |
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198 /** |
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199 * Allocates thread local garbage |
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200 */ |
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201 private void allocate(long amount) { |
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202 long allocated = 0; |
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203 while (allocated < amount && TestStressIHOPMultiThread.this.isRunning()) { |
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204 garbage.add(new byte[CHUNK_SIZE]); |
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205 allocated += CHUNK_SIZE; |
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206 } |
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207 } |
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208 |
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209 /** |
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210 * Frees thread local garbage |
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211 */ |
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212 private void free() { |
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213 garbage.clear(); |
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214 } |
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215 } |
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216 } |
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