Mercurial > hg > graal-compiler
view src/share/vm/interpreter/cppInterpreter.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 | b92c45f2bc75 |
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/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * 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_INTERPRETER_CPPINTERPRETER_HPP #define SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP #include "interpreter/abstractInterpreter.hpp" #ifdef CC_INTERP // This file contains the platform-independent parts // of the c++ interpreter class CppInterpreter: public AbstractInterpreter { friend class VMStructs; friend class Interpreter; // contains() friend class InterpreterGenerator; // result handlers friend class CppInterpreterGenerator; // result handlers public: protected: // tosca result -> stack result static address _tosca_to_stack[number_of_result_handlers]; // converts tosca to C++ interpreter stack result // stack result -> stack result static address _stack_to_stack[number_of_result_handlers]; // pass result between C++ interpreter calls // stack result -> native abi result static address _stack_to_native_abi[number_of_result_handlers]; // converts C++ interpreter results to native abi // this is to allow frame and only frame to use contains(). friend class frame; public: // Initialization/debugging static void initialize(); // this only returns whether a pc is within generated code for the interpreter. // This is a moderately dubious interface for the c++ interpreter. Only // frame code and debug.cpp should be using it. static bool contains(address pc); public: // No displatch table to switch so no need for these to do anything special static void notice_safepoints() {} static void ignore_safepoints() {} static address native_result_to_tosca() { return (address)_native_abi_to_tosca; } // aka result handler static address tosca_result_to_stack() { return (address)_tosca_to_stack; } static address stack_result_to_stack() { return (address)_stack_to_stack; } static address stack_result_to_native() { return (address)_stack_to_native_abi; } static address native_result_to_tosca(int index) { return _native_abi_to_tosca[index]; } // aka result handler static address tosca_result_to_stack(int index) { return _tosca_to_stack[index]; } static address stack_result_to_stack(int index) { return _stack_to_stack[index]; } static address stack_result_to_native(int index) { return _stack_to_native_abi[index]; } static address return_entry (TosState state, int length); static address deopt_entry (TosState state, int length); #ifdef TARGET_ARCH_x86 # include "cppInterpreter_x86.hpp" #endif #ifdef TARGET_ARCH_sparc # include "cppInterpreter_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "cppInterpreter_zero.hpp" #endif }; #endif // CC_INTERP #endif // SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP