Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/javaFrameAnchor.hpp @ 2368:dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
6627787: CMS: JVM refuses to start up with -Xms16m -Xmx16m
7000125: CMS: Anti-monotone young gen sizing with respect to maximum whole heap size specification
7027529: CMS: retire CMSUseOldDefaults flag
Summary: Simplify CMS heap sizing code, relying on ergonomic initial sizing consistent with other collectors for the most part, controlling only young gen sizing to rein in pause times. Make CMS young gen sizing default statically cpu-dependant. Remove inconsistencies wrt generation sizing and policy code, allowing for the fixing for 6627787 and 7000125. For 7027529, retire the flag CMSUseOldDefaults which had been introduced as a bridge from JDK 5 to JDK 6 a number of years ago.
Reviewed-by: brutisso, poonam
| author | ysr |
|---|---|
| date | Wed, 16 Mar 2011 10:37:08 -0700 |
| parents | b92c45f2bc75 |
| children | 1d1603768966 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 1972 | 24 |
| 25 #ifndef SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP | |
| 26 #define SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP | |
| 27 | |
| 28 #include "utilities/globalDefinitions.hpp" | |
| 29 #ifdef TARGET_OS_ARCH_linux_x86 | |
| 30 # include "orderAccess_linux_x86.inline.hpp" | |
| 31 #endif | |
| 32 #ifdef TARGET_OS_ARCH_linux_sparc | |
| 33 # include "orderAccess_linux_sparc.inline.hpp" | |
| 34 #endif | |
| 35 #ifdef TARGET_OS_ARCH_linux_zero | |
| 36 # include "orderAccess_linux_zero.inline.hpp" | |
| 37 #endif | |
| 38 #ifdef TARGET_OS_ARCH_solaris_x86 | |
| 39 # include "orderAccess_solaris_x86.inline.hpp" | |
| 40 #endif | |
| 41 #ifdef TARGET_OS_ARCH_solaris_sparc | |
| 42 # include "orderAccess_solaris_sparc.inline.hpp" | |
| 43 #endif | |
| 44 #ifdef TARGET_OS_ARCH_windows_x86 | |
| 45 # include "orderAccess_windows_x86.inline.hpp" | |
| 46 #endif | |
|
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
47 #ifdef TARGET_OS_ARCH_linux_arm |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
48 # include "orderAccess_linux_arm.inline.hpp" |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
49 #endif |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
50 #ifdef TARGET_OS_ARCH_linux_ppc |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
51 # include "orderAccess_linux_ppc.inline.hpp" |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
52 #endif |
| 0 | 53 // |
| 54 // An object for encapsulating the machine/os dependent part of a JavaThread frame state | |
| 55 // | |
| 56 class JavaThread; | |
| 57 | |
| 58 class JavaFrameAnchor VALUE_OBJ_CLASS_SPEC { | |
| 59 // Too many friends... | |
| 60 friend class CallNativeDirectNode; | |
| 61 friend class OptoRuntime; | |
| 62 friend class Runtime1; | |
| 63 friend class StubAssembler; | |
| 64 friend class CallRuntimeDirectNode; | |
| 65 friend class MacroAssembler; | |
| 66 friend class InterpreterGenerator; | |
| 67 friend class LIR_Assembler; | |
| 68 friend class GraphKit; | |
| 69 friend class StubGenerator; | |
| 70 friend class JavaThread; | |
| 71 friend class frame; | |
| 72 friend class VMStructs; | |
| 73 friend class BytecodeInterpreter; | |
| 74 friend class JavaCallWrapper; | |
| 75 | |
| 76 private: | |
| 77 // | |
| 78 // Whenever _last_Java_sp != NULL other anchor fields MUST be valid! | |
| 79 // The stack may not be walkable [check with walkable() ] but the values must be valid. | |
| 80 // The profiler apparently depends on this. | |
| 81 // | |
| 82 intptr_t* volatile _last_Java_sp; | |
| 83 | |
| 84 // Whenever we call from Java to native we can not be assured that the return | |
| 85 // address that composes the last_Java_frame will be in an accessible location | |
| 86 // so calls from Java to native store that pc (or one good enough to locate | |
| 87 // the oopmap) in the frame anchor. Since the frames that call from Java to | |
| 88 // native are never deoptimized we never need to patch the pc and so this | |
| 89 // is acceptable. | |
| 90 volatile address _last_Java_pc; | |
| 91 | |
| 92 // tells whether the last Java frame is set | |
| 93 // It is important that when last_Java_sp != NULL that the rest of the frame | |
| 94 // anchor (including platform specific) all be valid. | |
| 95 | |
| 96 bool has_last_Java_frame() const { return _last_Java_sp != NULL; } | |
| 97 // This is very dangerous unless sp == NULL | |
| 98 // Invalidate the anchor so that has_last_frame is false | |
| 99 // and no one should look at the other fields. | |
| 100 void zap(void) { _last_Java_sp = NULL; } | |
| 101 | |
| 1972 | 102 #ifdef TARGET_ARCH_x86 |
| 103 # include "javaFrameAnchor_x86.hpp" | |
| 104 #endif | |
| 105 #ifdef TARGET_ARCH_sparc | |
| 106 # include "javaFrameAnchor_sparc.hpp" | |
| 107 #endif | |
| 108 #ifdef TARGET_ARCH_zero | |
| 109 # include "javaFrameAnchor_zero.hpp" | |
| 110 #endif | |
|
2192
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
111 #ifdef TARGET_ARCH_arm |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
112 # include "javaFrameAnchor_arm.hpp" |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
113 #endif |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
114 #ifdef TARGET_ARCH_ppc |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
115 # include "javaFrameAnchor_ppc.hpp" |
|
b92c45f2bc75
7016023: Enable building ARM and PPC from src/closed repository
bobv
parents:
1972
diff
changeset
|
116 #endif |
| 1972 | 117 |
| 0 | 118 |
| 119 public: | |
| 120 JavaFrameAnchor() { clear(); } | |
| 121 JavaFrameAnchor(JavaFrameAnchor *src) { copy(src); } | |
| 122 | |
| 123 void set_last_Java_pc(address pc) { _last_Java_pc = pc; } | |
| 124 | |
| 125 // Assembly stub generation helpers | |
| 126 | |
| 127 static ByteSize last_Java_sp_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_sp); } | |
| 128 static ByteSize last_Java_pc_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_pc); } | |
| 129 | |
| 130 }; | |
| 1972 | 131 |
| 132 #endif // SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP |