author | jwilhelm |
Thu, 03 Oct 2013 21:36:29 +0200 | |
changeset 20398 | b206c580c45f |
parent 10001 | 8aa7f885326e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |
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#define SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |
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#include "memory/allocation.hpp" |
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#include "gc_implementation/g1/heapRegion.hpp" |
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#define SKIP_RETIRED_FULL_REGIONS 1 |
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class G1HRPrinter VALUE_OBJ_CLASS_SPEC { |
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public: |
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typedef enum { |
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Alloc, |
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AllocForce, |
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Retire, |
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Reuse, |
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CSet, |
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EvacFailure, |
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Cleanup, |
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PostCompaction, |
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Commit, |
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Uncommit |
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} ActionType; |
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typedef enum { |
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Unset, |
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Eden, |
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Survivor, |
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Old, |
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SingleHumongous, |
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StartsHumongous, |
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ContinuesHumongous |
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} RegionType; |
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typedef enum { |
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StartGC, |
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EndGC, |
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StartFullGC, |
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EndFullGC |
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} PhaseType; |
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private: |
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bool _active; |
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static const char* action_name(ActionType action); |
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static const char* region_type_name(RegionType type); |
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static const char* phase_name(PhaseType phase); |
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// Print an action event. This version is used in most scenarios and |
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// only prints the region's bottom. The parameters type and top are |
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// optional (the "not set" values are Unset and NULL). |
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static void print(ActionType action, RegionType type, |
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HeapRegion* hr, HeapWord* top); |
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// Print an action event. This version prints both the region's |
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// bottom and end. Used for Commit / Uncommit events. |
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static void print(ActionType action, HeapWord* bottom, HeapWord* end); |
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// Print a phase event. |
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static void print(PhaseType phase, size_t phase_num); |
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public: |
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// In some places we iterate over a list in order to generate output |
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// for the list's elements. By exposing this we can avoid this |
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// iteration if the printer is not active. |
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const bool is_active() { return _active; } |
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// Have to set this explicitly as we have to do this during the |
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// heap's initialize() method, not in the constructor. |
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void set_active(bool active) { _active = active; } |
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// The methods below are convenient wrappers for the print() methods. |
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void alloc(HeapRegion* hr, RegionType type, bool force = false) { |
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if (is_active()) { |
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print((!force) ? Alloc : AllocForce, type, hr, NULL); |
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} |
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} |
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void alloc(RegionType type, HeapRegion* hr, HeapWord* top) { |
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if (is_active()) { |
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print(Alloc, type, hr, top); |
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} |
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} |
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void retire(HeapRegion* hr) { |
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if (is_active()) { |
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if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) { |
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print(Retire, Unset, hr, hr->top()); |
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} |
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} |
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} |
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void reuse(HeapRegion* hr) { |
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if (is_active()) { |
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print(Reuse, Unset, hr, NULL); |
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} |
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} |
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void cset(HeapRegion* hr) { |
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if (is_active()) { |
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print(CSet, Unset, hr, NULL); |
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} |
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} |
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void evac_failure(HeapRegion* hr) { |
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if (is_active()) { |
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print(EvacFailure, Unset, hr, NULL); |
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} |
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} |
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|
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void cleanup(HeapRegion* hr) { |
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if (is_active()) { |
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print(Cleanup, Unset, hr, NULL); |
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} |
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} |
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|
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void post_compaction(HeapRegion* hr, RegionType type) { |
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if (is_active()) { |
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print(PostCompaction, type, hr, hr->top()); |
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} |
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} |
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|
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void commit(HeapWord* bottom, HeapWord* end) { |
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if (is_active()) { |
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print(Commit, bottom, end); |
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} |
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} |
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|
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void uncommit(HeapWord* bottom, HeapWord* end) { |
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if (is_active()) { |
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print(Uncommit, bottom, end); |
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} |
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} |
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|
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void start_gc(bool full, size_t gc_num) { |
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if (is_active()) { |
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if (!full) { |
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print(StartGC, gc_num); |
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} else { |
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print(StartFullGC, gc_num); |
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} |
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} |
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} |
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|
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void end_gc(bool full, size_t gc_num) { |
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if (is_active()) { |
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if (!full) { |
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print(EndGC, gc_num); |
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} else { |
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print(EndFullGC, gc_num); |
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} |
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} |
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} |
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|
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G1HRPrinter() : _active(false) { } |
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}; |
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|
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#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP |