Mercurial > hg > truffle
annotate test/runtime/NMT/MallocStressTest.java @ 21338:5010ea46630a
LinearScan: move changeSpillState to LinearScanWalker.
| author | Josef Eisl <josef.eisl@jku.at> |
|---|---|
| date | Tue, 12 May 2015 14:04:40 +0200 |
| parents | 3f9ff5e261c6 |
| children |
| rev | line source |
|---|---|
| 20394 | 1 /* |
| 2 * Copyright (c) 2014, 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 * @test | |
| 26 * @summary Stress test for malloc tracking | |
|
20401
3f9ff5e261c6
8055765: Misplaced @key stress prevents MallocSiteHashOverflow.java and MallocStressTest.java tests from running
gtriantafill
parents:
20394
diff
changeset
|
27 * @key nmt jcmd stress |
| 20394 | 28 * @library /testlibrary /testlibrary/whitebox |
| 29 * @build MallocStressTest | |
| 30 * @ignore - This test is disabled since it will stress NMT and timeout during normal testing | |
| 31 * @run main ClassFileInstaller sun.hotspot.WhiteBox | |
| 32 * @run main/othervm/timeout=600 -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:NativeMemoryTracking=detail MallocStressTest | |
| 33 */ | |
| 34 | |
| 35 import java.util.concurrent.atomic.AtomicInteger; | |
| 36 import java.util.ArrayList; | |
| 37 import java.util.List; | |
| 38 import java.util.Random; | |
| 39 import com.oracle.java.testlibrary.*; | |
| 40 import sun.hotspot.WhiteBox; | |
| 41 | |
| 42 public class MallocStressTest { | |
| 43 private static int K = 1024; | |
| 44 | |
| 45 // The stress test runs in three phases: | |
| 46 // 1. alloc: A lot of malloc with fewer free, which simulates a burst memory allocation | |
| 47 // that is usually seen during startup or class loading. | |
| 48 // 2. pause: Pause the test to check accuracy of native memory tracking | |
| 49 // 3. release: Release all malloc'd memory and check native memory tracking result. | |
| 50 public enum TestPhase { | |
| 51 alloc, | |
| 52 pause, | |
| 53 release | |
| 54 }; | |
| 55 | |
| 56 static TestPhase phase = TestPhase.alloc; | |
| 57 | |
| 58 // malloc'd memory | |
| 59 static ArrayList<MallocMemory> mallocd_memory = new ArrayList<MallocMemory>(); | |
| 60 static long mallocd_total = 0; | |
| 61 static WhiteBox whiteBox; | |
| 62 static AtomicInteger pause_count = new AtomicInteger(); | |
| 63 | |
| 64 static boolean is_64_bit_system; | |
| 65 | |
| 66 private static boolean is_64_bit_system() { return is_64_bit_system; } | |
| 67 | |
| 68 public static void main(String args[]) throws Exception { | |
| 69 is_64_bit_system = (Platform.is64bit()); | |
| 70 | |
| 71 OutputAnalyzer output; | |
| 72 whiteBox = WhiteBox.getWhiteBox(); | |
| 73 | |
| 74 // Grab my own PID | |
| 75 String pid = Integer.toString(ProcessTools.getProcessId()); | |
| 76 ProcessBuilder pb = new ProcessBuilder(); | |
| 77 | |
| 78 AllocThread[] alloc_threads = new AllocThread[256]; | |
| 79 ReleaseThread[] release_threads = new ReleaseThread[64]; | |
| 80 | |
| 81 int index; | |
| 82 // Create many allocation threads | |
| 83 for (index = 0; index < alloc_threads.length; index ++) { | |
| 84 alloc_threads[index] = new AllocThread(); | |
| 85 } | |
| 86 | |
| 87 // Fewer release threads | |
| 88 for (index = 0; index < release_threads.length; index ++) { | |
| 89 release_threads[index] = new ReleaseThread(); | |
| 90 } | |
| 91 | |
| 92 if (is_64_bit_system()) { | |
| 93 sleep_wait(2*60*1000); | |
| 94 } else { | |
| 95 sleep_wait(60*1000); | |
| 96 } | |
| 97 // pause the stress test | |
| 98 phase = TestPhase.pause; | |
| 99 while (pause_count.intValue() < alloc_threads.length + release_threads.length) { | |
| 100 sleep_wait(10); | |
| 101 } | |
| 102 | |
| 103 long mallocd_total_in_KB = (mallocd_total + K / 2) / K; | |
| 104 | |
| 105 // Now check if the result from NMT matches the total memory allocated. | |
| 106 String expected_test_summary = "Test (reserved=" + mallocd_total_in_KB +"KB, committed=" + mallocd_total_in_KB + "KB)"; | |
| 107 // Run 'jcmd <pid> VM.native_memory summary' | |
| 108 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"}); | |
| 109 output = new OutputAnalyzer(pb.start()); | |
| 110 output.shouldContain(expected_test_summary); | |
| 111 | |
| 112 // Release all allocated memory | |
| 113 phase = TestPhase.release; | |
| 114 synchronized(mallocd_memory) { | |
| 115 mallocd_memory.notifyAll(); | |
| 116 } | |
| 117 | |
| 118 // Join all threads | |
| 119 for (index = 0; index < alloc_threads.length; index ++) { | |
| 120 try { | |
| 121 alloc_threads[index].join(); | |
| 122 } catch (InterruptedException e) { | |
| 123 } | |
| 124 } | |
| 125 | |
| 126 for (index = 0; index < release_threads.length; index ++) { | |
| 127 try { | |
| 128 release_threads[index].join(); | |
| 129 } catch (InterruptedException e) { | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 // All test memory allocated should be released | |
| 134 output = new OutputAnalyzer(pb.start()); | |
| 135 output.shouldNotContain("Test (reserved="); | |
| 136 | |
| 137 // Verify that tracking level has not been downgraded | |
| 138 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "statistics"}); | |
| 139 output = new OutputAnalyzer(pb.start()); | |
| 140 output.shouldNotContain("Tracking level has been downgraded due to lack of resources"); | |
| 141 } | |
| 142 | |
| 143 private static void sleep_wait(int n) { | |
| 144 try { | |
| 145 Thread.sleep(n); | |
| 146 } catch (InterruptedException e) { | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 | |
| 151 static class MallocMemory { | |
| 152 private long addr; | |
| 153 private int size; | |
| 154 | |
| 155 MallocMemory(long addr, int size) { | |
| 156 this.addr = addr; | |
| 157 this.size = size; | |
| 158 } | |
| 159 | |
| 160 long addr() { return this.addr; } | |
| 161 int size() { return this.size; } | |
| 162 } | |
| 163 | |
| 164 static class AllocThread extends Thread { | |
| 165 AllocThread() { | |
| 166 this.setName("MallocThread"); | |
| 167 this.start(); | |
| 168 } | |
| 169 | |
| 170 // AllocThread only runs "Alloc" phase | |
| 171 public void run() { | |
| 172 Random random = new Random(); | |
| 173 while (MallocStressTest.phase == TestPhase.alloc) { | |
| 174 int r = Math.abs(random.nextInt()); | |
| 175 // Only malloc small amount to avoid OOM | |
| 176 int size = r % 32; | |
| 177 if (is_64_bit_system()) { | |
| 178 r = r % 32 * K; | |
| 179 } else { | |
| 180 r = r % 64; | |
| 181 } | |
| 182 if (size == 0) size = 1; | |
| 183 long addr = MallocStressTest.whiteBox.NMTMallocWithPseudoStack(size, r); | |
| 184 if (addr != 0) { | |
| 185 MallocMemory mem = new MallocMemory(addr, size); | |
| 186 synchronized(MallocStressTest.mallocd_memory) { | |
| 187 MallocStressTest.mallocd_memory.add(mem); | |
| 188 MallocStressTest.mallocd_total += size; | |
| 189 } | |
| 190 } else { | |
| 191 System.out.println("Out of malloc memory"); | |
| 192 break; | |
| 193 } | |
| 194 } | |
| 195 MallocStressTest.pause_count.incrementAndGet(); | |
| 196 } | |
| 197 } | |
| 198 | |
| 199 static class ReleaseThread extends Thread { | |
| 200 private Random random = new Random(); | |
| 201 ReleaseThread() { | |
| 202 this.setName("ReleaseThread"); | |
| 203 this.start(); | |
| 204 } | |
| 205 | |
| 206 public void run() { | |
| 207 while(true) { | |
| 208 switch(MallocStressTest.phase) { | |
| 209 case alloc: | |
| 210 slow_release(); | |
| 211 break; | |
| 212 case pause: | |
| 213 enter_pause(); | |
| 214 break; | |
| 215 case release: | |
| 216 quick_release(); | |
| 217 return; | |
| 218 } | |
| 219 } | |
| 220 } | |
| 221 | |
| 222 private void enter_pause() { | |
| 223 MallocStressTest.pause_count.incrementAndGet(); | |
| 224 while (MallocStressTest.phase != MallocStressTest.TestPhase.release) { | |
| 225 try { | |
| 226 synchronized(MallocStressTest.mallocd_memory) { | |
| 227 MallocStressTest.mallocd_memory.wait(10); | |
| 228 } | |
| 229 } catch (InterruptedException e) { | |
| 230 } | |
| 231 } | |
| 232 } | |
| 233 | |
| 234 private void quick_release() { | |
| 235 List<MallocMemory> free_list; | |
| 236 while (true) { | |
| 237 synchronized(MallocStressTest.mallocd_memory) { | |
| 238 if (MallocStressTest.mallocd_memory.isEmpty()) return; | |
| 239 int size = Math.min(MallocStressTest.mallocd_memory.size(), 5000); | |
| 240 List<MallocMemory> subList = MallocStressTest.mallocd_memory.subList(0, size); | |
| 241 free_list = new ArrayList<MallocMemory>(subList); | |
| 242 subList.clear(); | |
| 243 } | |
| 244 for (int index = 0; index < free_list.size(); index ++) { | |
| 245 MallocMemory mem = free_list.get(index); | |
| 246 MallocStressTest.whiteBox.NMTFree(mem.addr()); | |
| 247 } | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 private void slow_release() { | |
| 252 try { | |
| 253 Thread.sleep(10); | |
| 254 } catch (InterruptedException e) { | |
| 255 } | |
| 256 synchronized(MallocStressTest.mallocd_memory) { | |
| 257 if (MallocStressTest.mallocd_memory.isEmpty()) return; | |
| 258 int n = Math.abs(random.nextInt()) % MallocStressTest.mallocd_memory.size(); | |
| 259 MallocMemory mem = mallocd_memory.remove(n); | |
| 260 MallocStressTest.whiteBox.NMTFree(mem.addr()); | |
| 261 MallocStressTest.mallocd_total -= mem.size(); | |
| 262 } | |
| 263 } | |
| 264 } | |
| 265 } |