Sun, 02 Mar 2008 16:10:12 -0800
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
Summary: Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set. Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted.
Reviewed-by: iveresov, apetrusenko, pbk, ysr
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1998-2003 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // these inline functions are in a separate file to break an include cycle |
duke@435 | 26 | // between Thread and Handle |
duke@435 | 27 | |
duke@435 | 28 | inline Handle::Handle(oop obj) { |
duke@435 | 29 | if (obj == NULL) { |
duke@435 | 30 | _handle = NULL; |
duke@435 | 31 | } else { |
duke@435 | 32 | _handle = Thread::current()->handle_area()->allocate_handle(obj); |
duke@435 | 33 | } |
duke@435 | 34 | } |
duke@435 | 35 | |
duke@435 | 36 | |
duke@435 | 37 | #ifndef ASSERT |
duke@435 | 38 | inline Handle::Handle(Thread* thread, oop obj) { |
duke@435 | 39 | assert(thread == Thread::current(), "sanity check"); |
duke@435 | 40 | if (obj == NULL) { |
duke@435 | 41 | _handle = NULL; |
duke@435 | 42 | } else { |
duke@435 | 43 | _handle = thread->handle_area()->allocate_handle(obj); |
duke@435 | 44 | } |
duke@435 | 45 | } |
duke@435 | 46 | #endif // ASSERT |
duke@435 | 47 | |
duke@435 | 48 | |
duke@435 | 49 | inline HandleMark::HandleMark() { |
duke@435 | 50 | initialize(Thread::current()); |
duke@435 | 51 | } |
duke@435 | 52 | |
duke@435 | 53 | |
duke@435 | 54 | inline void HandleMark::push() { |
duke@435 | 55 | // This is intentionally a NOP. pop_and_restore will reset |
duke@435 | 56 | // values to the HandleMark further down the stack, typically |
duke@435 | 57 | // in JavaCalls::call_helper. |
duke@435 | 58 | debug_only(_area->_handle_mark_nesting++); |
duke@435 | 59 | } |
duke@435 | 60 | |
duke@435 | 61 | inline void HandleMark::pop_and_restore() { |
duke@435 | 62 | HandleArea* area = _area; // help compilers with poor alias analysis |
duke@435 | 63 | // Delete later chunks |
duke@435 | 64 | if( _chunk->next() ) { |
duke@435 | 65 | _chunk->next_chop(); |
duke@435 | 66 | } |
duke@435 | 67 | // Roll back arena to saved top markers |
duke@435 | 68 | area->_chunk = _chunk; |
duke@435 | 69 | area->_hwm = _hwm; |
duke@435 | 70 | area->_max = _max; |
duke@435 | 71 | NOT_PRODUCT(area->set_size_in_bytes(_size_in_bytes);) |
duke@435 | 72 | debug_only(area->_handle_mark_nesting--); |
duke@435 | 73 | } |