tonyp@1524: /*
trims@1907:  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
tonyp@1524:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
tonyp@1524:  *
tonyp@1524:  * This code is free software; you can redistribute it and/or modify it
tonyp@1524:  * under the terms of the GNU General Public License version 2 only, as
tonyp@1524:  * published by the Free Software Foundation.
tonyp@1524:  *
tonyp@1524:  * This code is distributed in the hope that it will be useful, but WITHOUT
tonyp@1524:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
tonyp@1524:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
tonyp@1524:  * version 2 for more details (a copy is included in the LICENSE file that
tonyp@1524:  * accompanied this code).
tonyp@1524:  *
tonyp@1524:  * You should have received a copy of the GNU General Public License version
tonyp@1524:  * 2 along with this work; if not, write to the Free Software Foundation,
tonyp@1524:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
tonyp@1524:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
tonyp@1524:  *
tonyp@1524:  */
tonyp@1524: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "gc_implementation/g1/g1CollectedHeap.hpp"
stefank@2314: #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
stefank@2314: #include "gc_implementation/g1/g1CollectorPolicy.hpp"
stefank@2314: #include "gc_implementation/g1/heapRegion.hpp"
stefank@2314: #include "services/g1MemoryPool.hpp"
tonyp@1524: 
tonyp@1524: G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h,
tonyp@1524:                                      const char* name,
tonyp@1524:                                      size_t init_size,
tonyp@1524:                                      bool support_usage_threshold) :
tonyp@1524:   _g1h(g1h), CollectedMemoryPool(name,
tonyp@1524:                                  MemoryPool::Heap,
tonyp@1524:                                  init_size,
tonyp@2109:                                  undefined_max(),
tonyp@1524:                                  support_usage_threshold) {
tonyp@1524:   assert(UseG1GC, "sanity");
tonyp@1524: }
tonyp@1524: 
tonyp@1524: // See the comment at the top of g1MemoryPool.hpp
tonyp@1524: size_t G1MemoryPoolSuper::eden_space_committed(G1CollectedHeap* g1h) {
tonyp@1529:   return MAX2(eden_space_used(g1h), (size_t) HeapRegion::GrainBytes);
tonyp@1524: }
tonyp@1524: 
tonyp@1524: // See the comment at the top of g1MemoryPool.hpp
tonyp@1524: size_t G1MemoryPoolSuper::eden_space_used(G1CollectedHeap* g1h) {
johnc@1829:   size_t young_list_length = g1h->young_list()->length();
tonyp@1524:   size_t eden_used = young_list_length * HeapRegion::GrainBytes;
tonyp@1524:   size_t survivor_used = survivor_space_used(g1h);
tonyp@1524:   eden_used = subtract_up_to_zero(eden_used, survivor_used);
tonyp@1524:   return eden_used;
tonyp@1524: }
tonyp@1524: 
tonyp@1524: // See the comment at the top of g1MemoryPool.hpp
tonyp@1524: size_t G1MemoryPoolSuper::survivor_space_committed(G1CollectedHeap* g1h) {
tonyp@1529:   return MAX2(survivor_space_used(g1h), (size_t) HeapRegion::GrainBytes);
tonyp@1524: }
tonyp@1524: 
tonyp@1524: // See the comment at the top of g1MemoryPool.hpp
tonyp@1524: size_t G1MemoryPoolSuper::survivor_space_used(G1CollectedHeap* g1h) {
tonyp@1524:   size_t survivor_num = g1h->g1_policy()->recorded_survivor_regions();
tonyp@1524:   size_t survivor_used = survivor_num * HeapRegion::GrainBytes;
tonyp@1524:   return survivor_used;
tonyp@1524: }
tonyp@1524: 
tonyp@1524: // See the comment at the top of g1MemoryPool.hpp
tonyp@1524: size_t G1MemoryPoolSuper::old_space_committed(G1CollectedHeap* g1h) {
tonyp@1524:   size_t committed = overall_committed(g1h);
tonyp@1524:   size_t eden_committed = eden_space_committed(g1h);
tonyp@1524:   size_t survivor_committed = survivor_space_committed(g1h);
tonyp@1524:   committed = subtract_up_to_zero(committed, eden_committed);
tonyp@1524:   committed = subtract_up_to_zero(committed, survivor_committed);
tonyp@1529:   committed = MAX2(committed, (size_t) HeapRegion::GrainBytes);
tonyp@1524:   return committed;
tonyp@1524: }
tonyp@1524: 
tonyp@1524: // See the comment at the top of g1MemoryPool.hpp
tonyp@1524: size_t G1MemoryPoolSuper::old_space_used(G1CollectedHeap* g1h) {
tonyp@1524:   size_t used = overall_used(g1h);
tonyp@1524:   size_t eden_used = eden_space_used(g1h);
tonyp@1524:   size_t survivor_used = survivor_space_used(g1h);
tonyp@1524:   used = subtract_up_to_zero(used, eden_used);
tonyp@1524:   used = subtract_up_to_zero(used, survivor_used);
tonyp@1524:   return used;
tonyp@1524: }
tonyp@1524: 
tonyp@1524: G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) :
tonyp@1524:   G1MemoryPoolSuper(g1h,
tonyp@1524:                     "G1 Eden",
tonyp@1524:                     eden_space_committed(g1h), /* init_size */
tonyp@2109:                     false /* support_usage_threshold */) { }
tonyp@1524: 
tonyp@1524: MemoryUsage G1EdenPool::get_memory_usage() {
tonyp@1527:   size_t initial_sz = initial_size();
tonyp@1527:   size_t max_sz     = max_size();
tonyp@1527:   size_t used       = used_in_bytes();
tonyp@1528:   size_t committed  = eden_space_committed(_g1h);
tonyp@1524: 
tonyp@1527:   return MemoryUsage(initial_sz, used, committed, max_sz);
tonyp@1524: }
tonyp@1524: 
tonyp@1524: G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) :
tonyp@1524:   G1MemoryPoolSuper(g1h,
tonyp@1524:                     "G1 Survivor",
tonyp@1524:                     survivor_space_committed(g1h), /* init_size */
tonyp@2109:                     false /* support_usage_threshold */) { }
tonyp@1524: 
tonyp@1524: MemoryUsage G1SurvivorPool::get_memory_usage() {
tonyp@1527:   size_t initial_sz = initial_size();
tonyp@1527:   size_t max_sz     = max_size();
tonyp@1527:   size_t used       = used_in_bytes();
tonyp@1528:   size_t committed  = survivor_space_committed(_g1h);
tonyp@1524: 
tonyp@1527:   return MemoryUsage(initial_sz, used, committed, max_sz);
tonyp@1524: }
tonyp@1524: 
tonyp@1524: G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) :
tonyp@1524:   G1MemoryPoolSuper(g1h,
tonyp@1524:                     "G1 Old Gen",
tonyp@1524:                     old_space_committed(g1h), /* init_size */
tonyp@2109:                     true /* support_usage_threshold */) { }
tonyp@1524: 
tonyp@1524: MemoryUsage G1OldGenPool::get_memory_usage() {
tonyp@1527:   size_t initial_sz = initial_size();
tonyp@1527:   size_t max_sz     = max_size();
tonyp@1527:   size_t used       = used_in_bytes();
tonyp@1528:   size_t committed  = old_space_committed(_g1h);
tonyp@1524: 
tonyp@1527:   return MemoryUsage(initial_sz, used, committed, max_sz);
tonyp@1524: }