1 /* 2 * Copyright (c) 1999, 2009, 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 25 // Thread-Local Edens support 26 27 # include "incls/_precompiled.incl" 28 # include "incls/_threadLocalAllocBuffer.cpp.incl" 29 30 // static member initialization 31 unsigned ThreadLocalAllocBuffer::_target_refills = 0; 32 GlobalTLABStats* ThreadLocalAllocBuffer::_global_stats = NULL; 33 34 void ThreadLocalAllocBuffer::clear_before_allocation() { 35 _slow_refill_waste += (unsigned)remaining(); 36 make_parsable(true); // also retire the TLAB 37 } 38 39 void ThreadLocalAllocBuffer::accumulate_statistics_before_gc() { 40 global_stats()->initialize(); 41 42 for(JavaThread *thread = Threads::first(); thread; thread = thread->next()) { 43 thread->tlab().accumulate_statistics(); 44 thread->tlab().initialize_statistics(); 45 } 46 47 // Publish new stats if some allocation occurred. 48 if (global_stats()->allocation() != 0) { | 1 /* 2 * Copyright (c) 1999, 2010, 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 25 #include "precompiled.hpp" 26 #include "memory/genCollectedHeap.hpp" 27 #include "memory/resourceArea.hpp" 28 #include "memory/threadLocalAllocBuffer.inline.hpp" 29 #include "memory/universe.inline.hpp" 30 #include "oops/oop.inline.hpp" 31 #include "utilities/copy.hpp" 32 #ifdef TARGET_OS_FAMILY_linux 33 # include "thread_linux.inline.hpp" 34 #endif 35 #ifdef TARGET_OS_FAMILY_solaris 36 # include "thread_solaris.inline.hpp" 37 #endif 38 #ifdef TARGET_OS_FAMILY_windows 39 # include "thread_windows.inline.hpp" 40 #endif 41 42 // Thread-Local Edens support 43 44 // static member initialization 45 unsigned ThreadLocalAllocBuffer::_target_refills = 0; 46 GlobalTLABStats* ThreadLocalAllocBuffer::_global_stats = NULL; 47 48 void ThreadLocalAllocBuffer::clear_before_allocation() { 49 _slow_refill_waste += (unsigned)remaining(); 50 make_parsable(true); // also retire the TLAB 51 } 52 53 void ThreadLocalAllocBuffer::accumulate_statistics_before_gc() { 54 global_stats()->initialize(); 55 56 for(JavaThread *thread = Threads::first(); thread; thread = thread->next()) { 57 thread->tlab().accumulate_statistics(); 58 thread->tlab().initialize_statistics(); 59 } 60 61 // Publish new stats if some allocation occurred. 62 if (global_stats()->allocation() != 0) { |