Tue, 10 Jan 2012 18:58:13 -0500
6888336: G1: avoid explicitly marking and pushing objects in survivor spaces
Summary: This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object).
Reviewed-by: johnc, brutisso
tonyp@3168 | 1 | /* |
tonyp@3168 | 2 | * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
tonyp@3168 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
tonyp@3168 | 4 | * |
tonyp@3168 | 5 | * This code is free software; you can redistribute it and/or modify it |
tonyp@3168 | 6 | * under the terms of the GNU General Public License version 2 only, as |
tonyp@3168 | 7 | * published by the Free Software Foundation. |
tonyp@3168 | 8 | * |
tonyp@3168 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
tonyp@3168 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
tonyp@3168 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
tonyp@3168 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
tonyp@3168 | 13 | * accompanied this code). |
tonyp@3168 | 14 | * |
tonyp@3168 | 15 | * You should have received a copy of the GNU General Public License version |
tonyp@3168 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
tonyp@3168 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
tonyp@3168 | 18 | * |
tonyp@3168 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
tonyp@3168 | 20 | * or visit www.oracle.com if you need additional information or have any |
tonyp@3168 | 21 | * questions. |
tonyp@3168 | 22 | * |
tonyp@3168 | 23 | */ |
tonyp@3168 | 24 | |
tonyp@3168 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VMSTRUCTS_G1_HPP |
tonyp@3168 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_VMSTRUCTS_G1_HPP |
tonyp@3168 | 27 | |
tonyp@3168 | 28 | #include "gc_implementation/g1/heapRegion.hpp" |
tonyp@3168 | 29 | #include "gc_implementation/g1/heapRegionSeq.inline.hpp" |
tonyp@3168 | 30 | #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
tonyp@3168 | 31 | |
tonyp@3168 | 32 | #define VM_STRUCTS_G1(nonstatic_field, static_field) \ |
tonyp@3168 | 33 | \ |
johnc@3182 | 34 | static_field(HeapRegion, GrainBytes, size_t) \ |
tonyp@3168 | 35 | \ |
tonyp@3168 | 36 | nonstatic_field(HeapRegionSeq, _regions, HeapRegion**) \ |
tonyp@3168 | 37 | nonstatic_field(HeapRegionSeq, _length, size_t) \ |
tonyp@3168 | 38 | \ |
tonyp@3168 | 39 | nonstatic_field(G1CollectedHeap, _hrs, HeapRegionSeq) \ |
tonyp@3168 | 40 | nonstatic_field(G1CollectedHeap, _g1_committed, MemRegion) \ |
tonyp@3168 | 41 | nonstatic_field(G1CollectedHeap, _summary_bytes_used, size_t) \ |
tonyp@3180 | 42 | nonstatic_field(G1CollectedHeap, _g1mm, G1MonitoringSupport*) \ |
tonyp@3180 | 43 | \ |
tonyp@3180 | 44 | nonstatic_field(G1MonitoringSupport, _eden_committed, size_t) \ |
tonyp@3180 | 45 | nonstatic_field(G1MonitoringSupport, _eden_used, size_t) \ |
tonyp@3180 | 46 | nonstatic_field(G1MonitoringSupport, _survivor_committed, size_t) \ |
tonyp@3180 | 47 | nonstatic_field(G1MonitoringSupport, _survivor_used, size_t) \ |
tonyp@3180 | 48 | nonstatic_field(G1MonitoringSupport, _old_committed, size_t) \ |
tonyp@3180 | 49 | nonstatic_field(G1MonitoringSupport, _old_used, size_t) \ |
tonyp@3168 | 50 | |
tonyp@3168 | 51 | |
tonyp@3168 | 52 | #define VM_TYPES_G1(declare_type, declare_toplevel_type) \ |
tonyp@3168 | 53 | \ |
tonyp@3168 | 54 | declare_type(G1CollectedHeap, SharedHeap) \ |
tonyp@3168 | 55 | \ |
tonyp@3168 | 56 | declare_type(HeapRegion, ContiguousSpace) \ |
tonyp@3168 | 57 | declare_toplevel_type(HeapRegionSeq) \ |
tonyp@3180 | 58 | declare_toplevel_type(G1MonitoringSupport) \ |
tonyp@3168 | 59 | \ |
tonyp@3168 | 60 | declare_toplevel_type(G1CollectedHeap*) \ |
tonyp@3168 | 61 | declare_toplevel_type(HeapRegion*) \ |
tonyp@3180 | 62 | declare_toplevel_type(G1MonitoringSupport*) \ |
tonyp@3180 | 63 | |
tonyp@3168 | 64 | |
tonyp@3168 | 65 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VMSTRUCTS_G1_HPP |