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 package sun.hotspot.code; 25 26 import java.lang.management.ManagementFactory; 27 import java.lang.management.MemoryPoolMXBean; 28 import java.util.EnumSet; 29 30 import sun.hotspot.WhiteBox; 31 32 public enum BlobType { 33 // Execution level 1 and 4 (non-profiled) nmethods (including native nmethods) 34 MethodNonProfiled(0, "CodeHeap 'non-profiled nmethods'", "NonProfiledCodeHeapSize") { 35 @Override 36 public boolean allowTypeWhenOverflow(BlobType type) { 37 return super.allowTypeWhenOverflow(type) 38 || type == BlobType.MethodProfiled; 39 } 40 }, 41 // Execution level 2 and 3 (profiled) nmethods 42 MethodProfiled(1, "CodeHeap 'profiled nmethods'", "ProfiledCodeHeapSize") { 43 @Override 44 public boolean allowTypeWhenOverflow(BlobType type) { 45 return super.allowTypeWhenOverflow(type) 46 || type == BlobType.MethodNonProfiled; 47 } 48 }, 49 // Non-nmethods like Buffers, Adapters and Runtime Stubs 50 NonNMethod(2, "CodeHeap 'non-nmethods'", "NonNMethodCodeHeapSize") { 51 @Override 52 public boolean allowTypeWhenOverflow(BlobType type) { 53 return super.allowTypeWhenOverflow(type) 54 || type == BlobType.MethodNonProfiled 55 || type == BlobType.MethodProfiled; 56 } 57 }, 58 // All types (No code cache segmentation) 59 All(3, "CodeCache", "ReservedCodeCacheSize"); 60 61 public final int id; 62 public final String sizeOptionName; 63 public final String beanName; 64 65 private BlobType(int id, String beanName, String sizeOptionName) { 66 this.id = id; 67 this.beanName = beanName; 68 this.sizeOptionName = sizeOptionName; 69 } 70 71 public MemoryPoolMXBean getMemoryPool() { 72 for (MemoryPoolMXBean bean : ManagementFactory.getMemoryPoolMXBeans()) { 73 String name = bean.getName(); 74 if (beanName.equals(name)) { 75 return bean; 76 } 77 } 78 return null; 79 } 80 81 public boolean allowTypeWhenOverflow(BlobType type) { 82 return type == this; 83 } 84 85 public static EnumSet<BlobType> getAvailable() { 86 WhiteBox whiteBox = WhiteBox.getWhiteBox(); 87 if (!whiteBox.getBooleanVMFlag("SegmentedCodeCache")) { 88 // only All for non segmented world 89 return EnumSet.of(All); 90 } 91 if (System.getProperty("java.vm.info").startsWith("interpreted ")) { 92 // only NonNMethod for -Xint 93 return EnumSet.of(NonNMethod); 94 } 95 96 EnumSet<BlobType> result = EnumSet.complementOf(EnumSet.of(All)); 97 if (!whiteBox.getBooleanVMFlag("TieredCompilation") 98 || whiteBox.getIntxVMFlag("TieredStopAtLevel") <= 1) { 99 // there is no MethodProfiled in non tiered world or pure C1 100 result.remove(MethodProfiled); 101 } 102 return result; 103 } 104 105 public long getSize() { 106 return WhiteBox.getWhiteBox().getUintxVMFlag(sizeOptionName); 107 } 108 }