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src/share/vm/gc_implementation/g1/g1MarkSweep.hpp@e72f7eecc96d (annotated)
src/share/vm/gc_implementation/g1/g1MarkSweep.hpp
Tue, 28 May 2013 09:32:06 +0200
- author
- tschatzl
- date
- Tue, 28 May 2013 09:32:06 +0200
- changeset 5204
- e72f7eecc96d
- parent 2314
- f95d63e2154a
- child 5237
- f2110083203d
- permissions
- -rw-r--r--
8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen
Summary: Fixed the output of G1SummarizeRSetStats: too small datatype for the number of concurrently processed cards, added concurrent remembered set thread time retrieval for Linux and Windows (BSD uses os::elapsedTime() now), and other cleanup. The information presented during VM operation is now relative to the previous output, not always cumulative if G1SummarizeRSetStatsPeriod > 0. At VM exit, the code prints a cumulative summary.
Reviewed-by: johnc, jwilhelm
| ysr@777 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. |
| ysr@777 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| ysr@777 | 4 | * |
| ysr@777 | 5 | * This code is free software; you can redistribute it and/or modify it |
| ysr@777 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| ysr@777 | 7 | * published by the Free Software Foundation. |
| ysr@777 | 8 | * |
| ysr@777 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| ysr@777 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| ysr@777 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| ysr@777 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| ysr@777 | 13 | * accompanied this code). |
| ysr@777 | 14 | * |
| ysr@777 | 15 | * You should have received a copy of the GNU General Public License version |
| ysr@777 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| ysr@777 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| ysr@777 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| ysr@777 | 22 | * |
| ysr@777 | 23 | */ |
| ysr@777 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP |
| stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP |
| stefank@2314 | 27 | |
| stefank@2314 | 28 | #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
| stefank@2314 | 29 | #include "gc_implementation/g1/heapRegion.hpp" |
| stefank@2314 | 30 | #include "memory/genMarkSweep.hpp" |
| stefank@2314 | 31 | #include "memory/generation.hpp" |
| stefank@2314 | 32 | #include "memory/universe.hpp" |
| stefank@2314 | 33 | #include "oops/markOop.hpp" |
| stefank@2314 | 34 | #include "oops/oop.hpp" |
| stefank@2314 | 35 | #include "runtime/timer.hpp" |
| stefank@2314 | 36 | #include "utilities/growableArray.hpp" |
| stefank@2314 | 37 | |
| ysr@777 | 38 | class ReferenceProcessor; |
| ysr@777 | 39 | |
| ysr@777 | 40 | // G1MarkSweep takes care of global mark-compact garbage collection for a |
| ysr@777 | 41 | // G1CollectedHeap using a four-phase pointer forwarding algorithm. All |
| ysr@777 | 42 | // generations are assumed to support marking; those that can also support |
| ysr@777 | 43 | // compaction. |
| ysr@777 | 44 | // |
| ysr@777 | 45 | // Class unloading will only occur when a full gc is invoked. |
| ysr@777 | 46 | |
| ysr@777 | 47 | |
| ysr@777 | 48 | class G1MarkSweep : AllStatic { |
| ysr@777 | 49 | friend class VM_G1MarkSweep; |
| ysr@777 | 50 | friend class Scavenge; |
| ysr@777 | 51 | |
| ysr@777 | 52 | public: |
| ysr@777 | 53 | |
| ysr@777 | 54 | static void invoke_at_safepoint(ReferenceProcessor* rp, |
| ysr@777 | 55 | bool clear_all_softrefs); |
| ysr@777 | 56 | |
| ysr@777 | 57 | private: |
| ysr@777 | 58 | |
| ysr@777 | 59 | // Mark live objects |
| ysr@777 | 60 | static void mark_sweep_phase1(bool& marked_for_deopt, |
| ysr@777 | 61 | bool clear_all_softrefs); |
| ysr@777 | 62 | // Calculate new addresses |
| ysr@777 | 63 | static void mark_sweep_phase2(); |
| ysr@777 | 64 | // Update pointers |
| ysr@777 | 65 | static void mark_sweep_phase3(); |
| ysr@777 | 66 | // Move objects to new positions |
| ysr@777 | 67 | static void mark_sweep_phase4(); |
| ysr@777 | 68 | |
| ysr@777 | 69 | static void allocate_stacks(); |
| ysr@777 | 70 | }; |
| stefank@2314 | 71 | |
| stefank@2314 | 72 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1MARKSWEEP_HPP |
