Mercurial > hg > graal-compiler
view src/share/vm/shark/sharkCacheDecache.hpp @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | f95d63e2154a |
children | 2cd5e15048e6 |
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/* * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2008, 2009 Red Hat, Inc. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP #define SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP #include "ci/ciMethod.hpp" #include "code/debugInfoRec.hpp" #include "shark/sharkBuilder.hpp" #include "shark/sharkFunction.hpp" #include "shark/sharkStateScanner.hpp" // Class hierarchy: // - SharkStateScanner // - SharkCacherDecacher // - SharkDecacher // - SharkJavaCallDecacher // - SharkVMCallDecacher // - SharkTrapDecacher // - SharkCacher // - SharkJavaCallCacher // - SharkVMCallCacher // - SharkFunctionEntryCacher // - SharkNormalEntryCacher // - SharkOSREntryCacher class SharkCacherDecacher : public SharkStateScanner { protected: SharkCacherDecacher(SharkFunction* function) : SharkStateScanner(function) {} // Helper protected: static int adjusted_offset(SharkValue* value, int offset) { if (value->is_two_word()) offset--; return offset; } }; class SharkDecacher : public SharkCacherDecacher { protected: SharkDecacher(SharkFunction* function, int bci) : SharkCacherDecacher(function), _bci(bci) {} private: int _bci; protected: int bci() const { return _bci; } private: int _pc_offset; OopMap* _oopmap; GrowableArray<ScopeValue*>* _exparray; GrowableArray<MonitorValue*>* _monarray; GrowableArray<ScopeValue*>* _locarray; private: int pc_offset() const { return _pc_offset; } OopMap* oopmap() const { return _oopmap; } GrowableArray<ScopeValue*>* exparray() const { return _exparray; } GrowableArray<MonitorValue*>* monarray() const { return _monarray; } GrowableArray<ScopeValue*>* locarray() const { return _locarray; } // Callbacks protected: void start_frame(); void start_stack(int stack_depth); void process_stack_slot(int index, SharkValue** value, int offset); void start_monitors(int num_monitors); void process_monitor(int index, int box_offset, int obj_offset); void process_oop_tmp_slot(llvm::Value** value, int offset); void process_method_slot(llvm::Value** value, int offset); void process_pc_slot(int offset); void start_locals(); void process_local_slot(int index, SharkValue** value, int offset); void end_frame(); // oopmap and debuginfo helpers private: static int oopmap_slot_munge(int offset) { return SharkStack::oopmap_slot_munge(offset); } static VMReg slot2reg(int offset) { return SharkStack::slot2reg(offset); } static Location slot2loc(int offset, Location::Type type) { return Location::new_stk_loc(type, offset * wordSize); } static LocationValue* slot2lv(int offset, Location::Type type) { return new LocationValue(slot2loc(offset, type)); } static Location::Type location_type(SharkValue** addr, bool maybe_two_word) { // low addresses this end // Type 32-bit 64-bit // ---------------------------------------------------- // stack[0] local[3] jobject oop oop // stack[1] local[2] NULL normal lng // stack[2] local[1] jlong normal invalid // stack[3] local[0] jint normal normal // // high addresses this end SharkValue *value = *addr; if (value) { if (value->is_jobject()) return Location::oop; #ifdef _LP64 if (value->is_two_word()) return Location::invalid; #endif // _LP64 return Location::normal; } else { if (maybe_two_word) { value = *(addr - 1); if (value && value->is_two_word()) { #ifdef _LP64 if (value->is_jlong()) return Location::lng; if (value->is_jdouble()) return Location::dbl; ShouldNotReachHere(); #else return Location::normal; #endif // _LP64 } } return Location::invalid; } } // Stack slot helpers protected: virtual bool stack_slot_needs_write(int index, SharkValue* value) = 0; virtual bool stack_slot_needs_oopmap(int index, SharkValue* value) = 0; virtual bool stack_slot_needs_debuginfo(int index, SharkValue* value) = 0; static Location::Type stack_location_type(int index, SharkValue** addr) { return location_type(addr, *addr == NULL); } // Local slot helpers protected: virtual bool local_slot_needs_write(int index, SharkValue* value) = 0; virtual bool local_slot_needs_oopmap(int index, SharkValue* value) = 0; virtual bool local_slot_needs_debuginfo(int index, SharkValue* value) = 0; static Location::Type local_location_type(int index, SharkValue** addr) { return location_type(addr, index > 0); } // Writer helper protected: void write_value_to_frame(const llvm::Type* type, llvm::Value* value, int offset); }; class SharkJavaCallDecacher : public SharkDecacher { public: SharkJavaCallDecacher(SharkFunction* function, int bci, ciMethod* callee) : SharkDecacher(function, bci), _callee(callee) {} private: ciMethod* _callee; protected: ciMethod* callee() const { return _callee; } // Stack slot helpers protected: bool stack_slot_needs_write(int index, SharkValue* value) { return value && (index < callee()->arg_size() || value->is_jobject()); } bool stack_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject() && index >= callee()->arg_size(); } bool stack_slot_needs_debuginfo(int index, SharkValue* value) { return index >= callee()->arg_size(); } // Local slot helpers protected: bool local_slot_needs_write(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_debuginfo(int index, SharkValue* value) { return true; } }; class SharkVMCallDecacher : public SharkDecacher { public: SharkVMCallDecacher(SharkFunction* function, int bci) : SharkDecacher(function, bci) {} // Stack slot helpers protected: bool stack_slot_needs_write(int index, SharkValue* value) { return value && value->is_jobject(); } bool stack_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool stack_slot_needs_debuginfo(int index, SharkValue* value) { return true; } // Local slot helpers protected: bool local_slot_needs_write(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_debuginfo(int index, SharkValue* value) { return true; } }; class SharkTrapDecacher : public SharkDecacher { public: SharkTrapDecacher(SharkFunction* function, int bci) : SharkDecacher(function, bci) {} // Stack slot helpers protected: bool stack_slot_needs_write(int index, SharkValue* value) { return value != NULL; } bool stack_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool stack_slot_needs_debuginfo(int index, SharkValue* value) { return true; } // Local slot helpers protected: bool local_slot_needs_write(int index, SharkValue* value) { return value != NULL; } bool local_slot_needs_oopmap(int index, SharkValue* value) { return value && value->is_jobject(); } bool local_slot_needs_debuginfo(int index, SharkValue* value) { return true; } }; class SharkCacher : public SharkCacherDecacher { protected: SharkCacher(SharkFunction* function) : SharkCacherDecacher(function) {} // Callbacks protected: void process_stack_slot(int index, SharkValue** value, int offset); void process_oop_tmp_slot(llvm::Value** value, int offset); virtual void process_method_slot(llvm::Value** value, int offset); virtual void process_local_slot(int index, SharkValue** value, int offset); // Stack slot helper protected: virtual bool stack_slot_needs_read(int index, SharkValue* value) = 0; // Local slot helper protected: virtual bool local_slot_needs_read(int index, SharkValue* value) { return value && value->is_jobject(); } // Writer helper protected: llvm::Value* read_value_from_frame(const llvm::Type* type, int offset); }; class SharkJavaCallCacher : public SharkCacher { public: SharkJavaCallCacher(SharkFunction* function, ciMethod* callee) : SharkCacher(function), _callee(callee) {} private: ciMethod* _callee; protected: ciMethod* callee() const { return _callee; } // Stack slot helper protected: bool stack_slot_needs_read(int index, SharkValue* value) { return value && (index < callee()->return_type()->size() || value->is_jobject()); } }; class SharkVMCallCacher : public SharkCacher { public: SharkVMCallCacher(SharkFunction* function) : SharkCacher(function) {} // Stack slot helper protected: bool stack_slot_needs_read(int index, SharkValue* value) { return value && value->is_jobject(); } }; class SharkFunctionEntryCacher : public SharkCacher { public: SharkFunctionEntryCacher(SharkFunction* function, llvm::Value* method) : SharkCacher(function), _method(method) {} private: llvm::Value* _method; private: llvm::Value* method() const { return _method; } // Method slot callback protected: void process_method_slot(llvm::Value** value, int offset); // Stack slot helper protected: bool stack_slot_needs_read(int index, SharkValue* value) { ShouldNotReachHere(); // entry block shouldn't have stack } // Local slot helper protected: bool local_slot_needs_read(int index, SharkValue* value) { return value != NULL; } }; class SharkNormalEntryCacher : public SharkFunctionEntryCacher { public: SharkNormalEntryCacher(SharkFunction* function, llvm::Value* method) : SharkFunctionEntryCacher(function, method) {} }; class SharkOSREntryCacher : public SharkFunctionEntryCacher { public: SharkOSREntryCacher(SharkFunction* function, llvm::Value* method, llvm::Value* osr_buf) : SharkFunctionEntryCacher(function, method), _osr_buf( builder()->CreateBitCast( osr_buf, llvm::PointerType::getUnqual( llvm::ArrayType::get( SharkType::intptr_type(), max_locals() + max_monitors() * 2)))) {} private: llvm::Value* _osr_buf; private: llvm::Value* osr_buf() const { return _osr_buf; } // Callbacks protected: void process_monitor(int index, int box_offset, int obj_offset); void process_local_slot(int index, SharkValue** value, int offset); // Helper private: llvm::Value* CreateAddressOfOSRBufEntry(int offset, const llvm::Type* type); }; #endif // SHARE_VM_SHARK_SHARKCACHEDECACHE_HPP