Mercurial > hg > truffle
view src/share/vm/runtime/threadLocalStorage.hpp @ 10246:194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
Summary: Refactor G1's hot card cache and card counts table into their own files. Simplify the card counts table, including removing the encoding of the card index in each entry. The card counts table now has a 1:1 correspondence with the cards spanned by heap. Space for the card counts table is reserved from virtual memory (rather than C heap) during JVM startup and is committed/expanded when the heap is expanded. Changes were also reviewed-by Vitaly Davidovich.
Reviewed-by: tschatzl, jmasa
author | johnc |
---|---|
date | Thu, 09 May 2013 11:16:39 -0700 |
parents | f08d439fab8c |
children | bdd155477289 |
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/* * Copyright (c) 1997, 2011, 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_RUNTIME_THREADLOCALSTORAGE_HPP #define SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP #include "gc_implementation/shared/gcUtil.hpp" #include "runtime/os.hpp" #include "utilities/top.hpp" // Interface for thread local storage // Fast variant of ThreadLocalStorage::get_thread_slow extern "C" Thread* get_thread(); // Get raw thread id: e.g., %g7 on sparc, fs or gs on x86 extern "C" uintptr_t _raw_thread_id(); class ThreadLocalStorage : AllStatic { public: static void set_thread(Thread* thread); static Thread* get_thread_slow(); static void invalidate_all() { pd_invalidate_all(); } // Machine dependent stuff #ifdef TARGET_OS_ARCH_linux_x86 # include "threadLS_linux_x86.hpp" #endif #ifdef TARGET_OS_ARCH_linux_sparc # include "threadLS_linux_sparc.hpp" #endif #ifdef TARGET_OS_ARCH_linux_zero # include "threadLS_linux_zero.hpp" #endif #ifdef TARGET_OS_ARCH_solaris_x86 # include "threadLS_solaris_x86.hpp" #endif #ifdef TARGET_OS_ARCH_solaris_sparc # include "threadLS_solaris_sparc.hpp" #endif #ifdef TARGET_OS_ARCH_windows_x86 # include "threadLS_windows_x86.hpp" #endif #ifdef TARGET_OS_ARCH_linux_arm # include "threadLS_linux_arm.hpp" #endif #ifdef TARGET_OS_ARCH_linux_ppc # include "threadLS_linux_ppc.hpp" #endif #ifdef TARGET_OS_ARCH_bsd_x86 # include "threadLS_bsd_x86.hpp" #endif #ifdef TARGET_OS_ARCH_bsd_zero # include "threadLS_bsd_zero.hpp" #endif public: // Accessor static inline int thread_index() { return _thread_index; } static inline void set_thread_index(int index) { _thread_index = index; } // Initialization // Called explicitly from VMThread::activate_system instead of init_globals. static void init(); static bool is_initialized(); private: static int _thread_index; static void generate_code_for_get_thread(); // Processor dependent parts of set_thread and initialization static void pd_set_thread(Thread* thread); static void pd_init(); // Invalidate any thread cacheing or optimization schemes. static void pd_invalidate_all(); }; #endif // SHARE_VM_RUNTIME_THREADLOCALSTORAGE_HPP