9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_G1_G1HRPRINTER_HPP 26 #define SHARE_VM_GC_G1_G1HRPRINTER_HPP 27 28 #include "gc/g1/heapRegion.hpp" 29 #include "memory/allocation.hpp" 30 31 #define SKIP_RETIRED_FULL_REGIONS 1 32 33 class G1HRPrinter VALUE_OBJ_CLASS_SPEC { 34 public: 35 typedef enum { 36 Alloc, 37 AllocForce, 38 Retire, 39 Reuse, 40 CSet, 41 EvacFailure, 42 Cleanup, 43 PostCompaction, 44 Commit, 45 Uncommit 46 } ActionType; 47 48 typedef enum { 49 Unset, 50 Eden, 51 Survivor, 52 Old, 53 SingleHumongous, 54 StartsHumongous, 55 ContinuesHumongous, 56 Archive 57 } RegionType; 58 59 typedef enum { 60 StartGC, 61 EndGC, 62 StartFullGC, 63 EndFullGC 64 } PhaseType; 65 66 private: 67 bool _active; 68 69 static const char* action_name(ActionType action); 70 static const char* region_type_name(RegionType type); 71 static const char* phase_name(PhaseType phase); 72 73 // Print an action event. This version is used in most scenarios and 74 // only prints the region's bottom. The parameters type and top are 75 // optional (the "not set" values are Unset and NULL). 76 static void print(ActionType action, RegionType type, 77 HeapRegion* hr, HeapWord* top); 78 79 // Print an action event. This version prints both the region's 80 // bottom and end. Used for Commit / Uncommit events. 81 static void print(ActionType action, HeapWord* bottom, HeapWord* end); 82 83 // Print a phase event. 84 static void print(PhaseType phase, size_t phase_num); 85 86 public: 87 // In some places we iterate over a list in order to generate output 88 // for the list's elements. By exposing this we can avoid this 89 // iteration if the printer is not active. 90 const bool is_active() { return _active; } 91 92 // Have to set this explicitly as we have to do this during the 93 // heap's initialize() method, not in the constructor. 94 void set_active(bool active) { _active = active; } 95 96 // The methods below are convenient wrappers for the print() methods. 97 98 void alloc(HeapRegion* hr, RegionType type, bool force = false) { 99 if (is_active()) { 100 print((!force) ? Alloc : AllocForce, type, hr, NULL); 101 } 102 } 103 104 void alloc(RegionType type, HeapRegion* hr, HeapWord* top) { 105 if (is_active()) { 106 print(Alloc, type, hr, top); 107 } 108 } 109 110 void retire(HeapRegion* hr) { 111 if (is_active()) { 112 if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) { 113 print(Retire, Unset, hr, hr->top()); 114 } 139 } 140 } 141 142 void post_compaction(HeapRegion* hr, RegionType type) { 143 if (is_active()) { 144 print(PostCompaction, type, hr, hr->top()); 145 } 146 } 147 148 void commit(HeapWord* bottom, HeapWord* end) { 149 if (is_active()) { 150 print(Commit, bottom, end); 151 } 152 } 153 154 void uncommit(HeapWord* bottom, HeapWord* end) { 155 if (is_active()) { 156 print(Uncommit, bottom, end); 157 } 158 } 159 160 void start_gc(bool full, size_t gc_num) { 161 if (is_active()) { 162 if (!full) { 163 print(StartGC, gc_num); 164 } else { 165 print(StartFullGC, gc_num); 166 } 167 } 168 } 169 170 void end_gc(bool full, size_t gc_num) { 171 if (is_active()) { 172 if (!full) { 173 print(EndGC, gc_num); 174 } else { 175 print(EndFullGC, gc_num); 176 } 177 } 178 } 179 180 G1HRPrinter() : _active(false) { } 181 }; 182 183 #endif // SHARE_VM_GC_G1_G1HRPRINTER_HPP | 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_G1_G1HRPRINTER_HPP 26 #define SHARE_VM_GC_G1_G1HRPRINTER_HPP 27 28 #include "gc/g1/heapRegion.hpp" 29 #include "logging/log.hpp" 30 #include "memory/allocation.hpp" 31 32 #define SKIP_RETIRED_FULL_REGIONS 1 33 34 class G1HRPrinter VALUE_OBJ_CLASS_SPEC { 35 public: 36 typedef enum { 37 Alloc, 38 AllocForce, 39 Retire, 40 Reuse, 41 CSet, 42 EvacFailure, 43 Cleanup, 44 PostCompaction, 45 Commit, 46 Uncommit 47 } ActionType; 48 49 typedef enum { 50 Unset, 51 Eden, 52 Survivor, 53 Old, 54 SingleHumongous, 55 StartsHumongous, 56 ContinuesHumongous, 57 Archive 58 } RegionType; 59 60 private: 61 static const char* action_name(ActionType action); 62 static const char* region_type_name(RegionType type); 63 64 // Print an action event. This version is used in most scenarios and 65 // only prints the region's bottom. The parameters type and top are 66 // optional (the "not set" values are Unset and NULL). 67 static void print(ActionType action, RegionType type, 68 HeapRegion* hr, HeapWord* top); 69 70 // Print an action event. This version prints both the region's 71 // bottom and end. Used for Commit / Uncommit events. 72 static void print(ActionType action, HeapWord* bottom, HeapWord* end); 73 74 public: 75 // In some places we iterate over a list in order to generate output 76 // for the list's elements. By exposing this we can avoid this 77 // iteration if the printer is not active. 78 const bool is_active() { return log_is_enabled(Trace, gc, region); } 79 80 // The methods below are convenient wrappers for the print() methods. 81 82 void alloc(HeapRegion* hr, RegionType type, bool force = false) { 83 if (is_active()) { 84 print((!force) ? Alloc : AllocForce, type, hr, NULL); 85 } 86 } 87 88 void alloc(RegionType type, HeapRegion* hr, HeapWord* top) { 89 if (is_active()) { 90 print(Alloc, type, hr, top); 91 } 92 } 93 94 void retire(HeapRegion* hr) { 95 if (is_active()) { 96 if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) { 97 print(Retire, Unset, hr, hr->top()); 98 } 123 } 124 } 125 126 void post_compaction(HeapRegion* hr, RegionType type) { 127 if (is_active()) { 128 print(PostCompaction, type, hr, hr->top()); 129 } 130 } 131 132 void commit(HeapWord* bottom, HeapWord* end) { 133 if (is_active()) { 134 print(Commit, bottom, end); 135 } 136 } 137 138 void uncommit(HeapWord* bottom, HeapWord* end) { 139 if (is_active()) { 140 print(Uncommit, bottom, end); 141 } 142 } 143 }; 144 145 #endif // SHARE_VM_GC_G1_G1HRPRINTER_HPP |