1 /* 2 * Copyright (c) 2014, 2015, 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 import java.lang.reflect.Method; 26 import java.util.stream.IntStream; 27 28 import jdk.test.lib.Platform; 29 30 /* 31 * @test OverloadCompileQueueTest 32 * @library /testlibrary /test/lib 33 * @modules java.base/jdk.internal.misc 34 * java.management 35 * @ignore 8071905 36 * @build OverloadCompileQueueTest 37 * @run main ClassFileInstaller sun.hotspot.WhiteBox 38 * sun.hotspot.WhiteBox$WhiteBoxPermission 39 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 40 * -XX:CompileCommand=dontinline,Helper$TestCase::method 41 * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache OverloadCompileQueueTest 42 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 43 * -XX:CompileCommand=dontinline,Helper$TestCase::method 44 * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache OverloadCompileQueueTest 45 * @summary stressing code cache by overloading compile queues 46 */ 47 public class OverloadCompileQueueTest implements Runnable { 48 private static final int MAX_SLEEP = 10000; 49 private static final String METHOD_TO_ENQUEUE = "method"; 50 private static final int LEVEL_SIMPLE = 1; 51 private static final int LEVEL_FULL_OPTIMIZATION = 4; 52 private static final boolean INTERPRETED 53 = System.getProperty("java.vm.info").startsWith("interpreted "); 54 private static final boolean TIERED_COMPILATION 55 = Helper.WHITE_BOX.getBooleanVMFlag("TieredCompilation"); 56 private static final int TIERED_STOP_AT_LEVEL 57 = Helper.WHITE_BOX.getIntxVMFlag("TieredStopAtLevel").intValue(); 58 private static final int[] AVAILABLE_LEVELS; 59 static { 60 if (TIERED_COMPILATION) { 61 AVAILABLE_LEVELS = IntStream 62 .rangeClosed(LEVEL_SIMPLE, TIERED_STOP_AT_LEVEL) 63 .toArray(); 64 } else if (Platform.isServer()) { 65 AVAILABLE_LEVELS = new int[] { LEVEL_FULL_OPTIMIZATION }; 66 } else if (Platform.isClient() || Platform.isMinimal()) { 67 AVAILABLE_LEVELS = new int[] { LEVEL_SIMPLE }; 68 } else { 69 throw new Error(String.format( 70 "TESTBUG: unknown VM: %s", System.getProperty("java.vm.name"))); 71 } 72 } 73 74 public static void main(String[] args) { 75 if (INTERPRETED) { 76 System.err.println("Test isn't applicable for interpreter. Skip test."); 77 return; 78 } 79 new CodeCacheStressRunner(new OverloadCompileQueueTest()).runTest(); 80 } 81 82 public OverloadCompileQueueTest() { 83 Helper.startInfiniteLoopThread(this::lockUnlock, 100L); 84 } 85 86 @Override 87 public void run() { 88 Helper.TestCase obj = Helper.TestCase.get(); 89 Class clazz = obj.getClass(); 90 Method mEnqueue; 91 try { 92 mEnqueue = clazz.getMethod(METHOD_TO_ENQUEUE); 93 } catch (NoSuchMethodException | SecurityException e) { 94 throw new Error(String.format( 95 "TESTBUG: cannot get method '%s' of class %s", 96 METHOD_TO_ENQUEUE, clazz.getName()), e); 97 } 98 for (int compLevel : AVAILABLE_LEVELS) { 99 Helper.WHITE_BOX.enqueueMethodForCompilation(mEnqueue, compLevel); 100 } 101 } 102 103 private void lockUnlock() { 104 try { 105 int sleep = Helper.RNG.nextInt(MAX_SLEEP); 106 Helper.WHITE_BOX.lockCompilation(); 107 Thread.sleep(sleep); 108 } catch (InterruptedException e) { 109 throw new Error("TESTBUG: lockUnlocker thread was unexpectedly interrupted", e); 110 } finally { 111 Helper.WHITE_BOX.unlockCompilation(); 112 } 113 } 114 115 }