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