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 package sun.hotspot.code; 26 27 import java.lang.management.ManagementFactory; 28 import java.lang.management.MemoryPoolMXBean; 29 import java.util.EnumSet; 30 31 import sun.hotspot.WhiteBox; 32 33 public enum BlobType { 34 // Execution level 1 and 4 (non-profiled) nmethods (including native nmethods) 35 MethodNonProfiled(0, "CodeHeap 'non-profiled nmethods'", "NonProfiledCodeHeapSize") { 36 @Override 37 public boolean allowTypeWhenOverflow(BlobType type) { 38 return super.allowTypeWhenOverflow(type) 39 || type == BlobType.MethodProfiled; 40 } 41 }, 42 // Execution level 2 and 3 (profiled) nmethods 43 MethodProfiled(1, "CodeHeap 'profiled nmethods'", "ProfiledCodeHeapSize") { 44 @Override 45 public boolean allowTypeWhenOverflow(BlobType type) { 46 return super.allowTypeWhenOverflow(type) 47 || type == BlobType.MethodNonProfiled; 48 } 49 }, 50 // Non-nmethods like Buffers, Adapters and Runtime Stubs 51 NonNMethod(2, "CodeHeap 'non-nmethods'", "NonNMethodCodeHeapSize") { 52 @Override 53 public boolean allowTypeWhenOverflow(BlobType type) { 54 return super.allowTypeWhenOverflow(type) 55 || type == BlobType.MethodNonProfiled 56 || type == BlobType.MethodProfiled; 57 } 58 }, 59 // All types (No code cache segmentation) 60 All(3, "CodeCache", "ReservedCodeCacheSize"); 61 62 public final int id; 63 public final String sizeOptionName; 64 public final String beanName; 65 66 private BlobType(int id, String beanName, String sizeOptionName) { 67 this.id = id; 68 this.beanName = beanName; 69 this.sizeOptionName = sizeOptionName; 70 } 71 72 public MemoryPoolMXBean getMemoryPool() { 73 for (MemoryPoolMXBean bean : ManagementFactory.getMemoryPoolMXBeans()) { 74 String name = bean.getName(); 75 if (beanName.equals(name)) { 76 return bean; 77 } 78 } 79 return null; 80 } 81 82 public boolean allowTypeWhenOverflow(BlobType type) { 83 return type == this; 84 } 85 86 public static EnumSet<BlobType> getAvailable() { 87 WhiteBox whiteBox = WhiteBox.getWhiteBox(); 88 if (!whiteBox.getBooleanVMFlag("SegmentedCodeCache")) { 89 // only All for non segmented world 90 return EnumSet.of(All); 91 } 92 if (System.getProperty("java.vm.info").startsWith("interpreted ")) { 93 // only NonNMethod for -Xint 94 return EnumSet.of(NonNMethod); 95 } 96 97 EnumSet<BlobType> result = EnumSet.complementOf(EnumSet.of(All)); 98 if (!whiteBox.getBooleanVMFlag("TieredCompilation") 99 || whiteBox.getIntxVMFlag("TieredStopAtLevel") <= 1) { 100 // there is no MethodProfiled in non tiered world or pure C1 101 result.remove(MethodProfiled); 102 } 103 return result; 104 } 105 106 public long getSize() { 107 return WhiteBox.getWhiteBox().getUintxVMFlag(sizeOptionName); 108 } 109 }