OverflowCodeCacheTest.java revision 11707:ad7af1afda7a
1228060Sbapt/* 2228060Sbapt * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3228060Sbapt * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4228060Sbapt * 5228060Sbapt * This code is free software; you can redistribute it and/or modify it 6228060Sbapt * under the terms of the GNU General Public License version 2 only, as 7228060Sbapt * published by the Free Software Foundation. 8228060Sbapt * 9228060Sbapt * This code is distributed in the hope that it will be useful, but WITHOUT 10228060Sbapt * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11228060Sbapt * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12228060Sbapt * version 2 for more details (a copy is included in the LICENSE file that 13228060Sbapt * accompanied this code). 14228060Sbapt * 15228060Sbapt * You should have received a copy of the GNU General Public License version 16228060Sbapt * 2 along with this work; if not, write to the Free Software Foundation, 17228060Sbapt * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18228060Sbapt * 19228060Sbapt * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20228060Sbapt * or visit www.oracle.com if you need additional information or have any 21228060Sbapt * questions. 22228060Sbapt * 23228060Sbapt */ 24228060Sbapt 25228060Sbapt/* 26228060Sbapt * @test OverflowCodeCacheTest 27228060Sbapt * @bug 8059550 28228060Sbapt * @summary testing of code cache segments overflow 29228060Sbapt * @library /testlibrary /test/lib 30228060Sbapt * @modules java.base/jdk.internal.misc 31228060Sbapt * java.management 32228060Sbapt * 33228060Sbapt * @build compiler.codecache.OverflowCodeCacheTest 34228060Sbapt * @run driver ClassFileInstaller sun.hotspot.WhiteBox 35228060Sbapt * sun.hotspot.WhiteBox$WhiteBoxPermission 36228060Sbapt * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37228060Sbapt * -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,null::* 38228060Sbapt * -XX:-SegmentedCodeCache 39228060Sbapt * compiler.codecache.OverflowCodeCacheTest 40228060Sbapt * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 41228060Sbapt * -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,null::* 42 * -XX:+SegmentedCodeCache 43 * compiler.codecache.OverflowCodeCacheTest 44 */ 45 46package compiler.codecache; 47 48import jdk.test.lib.Asserts; 49import sun.hotspot.WhiteBox; 50import sun.hotspot.code.BlobType; 51import sun.hotspot.code.CodeBlob; 52 53import java.lang.management.MemoryPoolMXBean; 54import java.util.ArrayList; 55import java.util.EnumSet; 56 57public class OverflowCodeCacheTest { 58 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); 59 60 public static void main(String[] args) { 61 EnumSet<BlobType> blobTypes = BlobType.getAvailable(); 62 for (BlobType type : blobTypes) { 63 new OverflowCodeCacheTest(type).test(); 64 } 65 } 66 67 private final BlobType type; 68 private final MemoryPoolMXBean bean; 69 private OverflowCodeCacheTest(BlobType type) { 70 this.type = type; 71 this.bean = type.getMemoryPool(); 72 } 73 74 private void test() { 75 System.out.printf("type %s%n", type); 76 System.out.println("allocating till possible..."); 77 ArrayList<Long> blobs = new ArrayList<>(); 78 try { 79 long addr; 80 int size = (int) (getHeapSize() >> 7); 81 while ((addr = WHITE_BOX.allocateCodeBlob(size, type.id)) != 0) { 82 blobs.add(addr); 83 84 BlobType actualType = CodeBlob.getCodeBlob(addr).code_blob_type; 85 if (actualType != type) { 86 // check we got allowed overflow handling 87 Asserts.assertTrue(type.allowTypeWhenOverflow(actualType), 88 type + " doesn't allow using " + actualType + " when overflow"); 89 } 90 } 91 Asserts.assertNotEquals(WHITE_BOX.getCompilationActivityMode(), 1 /* run_compilation*/, 92 "Compilation must be disabled when CodeCache(CodeHeap) overflows"); 93 } finally { 94 for (Long blob : blobs) { 95 WHITE_BOX.freeCodeBlob(blob); 96 } 97 } 98 } 99 100 private long getHeapSize() { 101 return bean.getUsage().getMax(); 102 } 103 104} 105