6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 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 #include "precompiled.hpp" 26 #include "gc/serial/serialArguments.hpp" 27 #include "gc/shared/gcConfig.hpp" 28 #include "runtime/java.hpp" 29 #include "runtime/os.hpp" 30 #include "utilities/macros.hpp" 31 #if INCLUDE_ALL_GCS 32 #include "gc/parallel/parallelArguments.hpp" 33 #include "gc/cms/cmsArguments.hpp" 34 #include "gc/g1/g1Arguments.hpp" 35 #endif // INCLUDE_ALL_GCS 36 37 struct SupportedGC { 38 bool& _flag; 39 CollectedHeap::Name _name; 40 GCArguments& _arguments; 41 42 SupportedGC(bool& flag, CollectedHeap::Name name, GCArguments& arguments) : 43 _flag(flag), _name(name), _arguments(arguments) {} 44 }; 45 46 static SerialArguments serialArguments; 47 #if INCLUDE_ALL_GCS 48 static ParallelArguments parallelArguments; 49 static CMSArguments cmsArguments; 50 static G1Arguments g1Arguments; 51 #endif // INCLUDE_ALL_GCS 52 53 // Table of supported GCs, for translating between command 54 // line flag, CollectedHeap::Name and GCArguments instance. 55 static const SupportedGC SupportedGCs[] = { 56 SupportedGC(UseSerialGC, CollectedHeap::Serial, serialArguments), 57 #if INCLUDE_ALL_GCS 58 SupportedGC(UseParallelGC, CollectedHeap::Parallel, parallelArguments), 59 SupportedGC(UseParallelOldGC, CollectedHeap::Parallel, parallelArguments), 60 SupportedGC(UseConcMarkSweepGC, CollectedHeap::CMS, cmsArguments), 61 SupportedGC(UseG1GC, CollectedHeap::G1, g1Arguments), 62 #endif // INCLUDE_ALL_GCS 63 }; 64 65 GCArguments* GCConfig::_arguments = NULL; 66 bool GCConfig::_gc_selected_ergonomically = false; 67 68 void GCConfig::select_gc_ergonomically() { 69 #if INCLUDE_ALL_GCS 70 if (os::is_server_class_machine()) { 71 FLAG_SET_ERGO_IF_DEFAULT(bool, UseG1GC, true); 72 } else { 73 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true); 74 } 75 #else 76 UNSUPPORTED_OPTION(UseG1GC); 77 UNSUPPORTED_OPTION(UseParallelGC); 78 UNSUPPORTED_OPTION(UseParallelOldGC); 79 UNSUPPORTED_OPTION(UseConcMarkSweepGC); 80 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true); 81 #endif // INCLUDE_ALL_GCS 82 } 83 84 bool GCConfig::is_no_gc_selected() { 85 for (size_t i = 0; i < ARRAY_SIZE(SupportedGCs); i++) { 86 if (SupportedGCs[i]._flag) { 87 return false; 88 } 89 } 90 91 return true; 92 } 93 94 bool GCConfig::is_exactly_one_gc_selected() { 95 CollectedHeap::Name selected = CollectedHeap::None; 96 97 for (size_t i = 0; i < ARRAY_SIZE(SupportedGCs); i++) { 98 if (SupportedGCs[i]._flag) { 99 if (SupportedGCs[i]._name == selected || selected == CollectedHeap::None) { 100 // Selected 101 selected = SupportedGCs[i]._name; | 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 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 #include "precompiled.hpp" 26 #include "gc/shared/gcConfig.hpp" 27 #include "runtime/java.hpp" 28 #include "runtime/os.hpp" 29 #include "utilities/macros.hpp" 30 #if INCLUDE_CMSGC 31 #include "gc/cms/cmsArguments.hpp" 32 #endif 33 #if INCLUDE_G1GC 34 #include "gc/g1/g1Arguments.hpp" 35 #endif 36 #if INCLUDE_PARALLELGC 37 #include "gc/parallel/parallelArguments.hpp" 38 #endif 39 #if INCLUDE_SERIALGC 40 #include "gc/serial/serialArguments.hpp" 41 #endif 42 43 struct SupportedGC { 44 bool& _flag; 45 CollectedHeap::Name _name; 46 GCArguments& _arguments; 47 48 SupportedGC(bool& flag, CollectedHeap::Name name, GCArguments& arguments) : 49 _flag(flag), _name(name), _arguments(arguments) {} 50 }; 51 52 CMSGC_ONLY(static CMSArguments cmsArguments;) 53 G1GC_ONLY(static G1Arguments g1Arguments;) 54 PARALLELGC_ONLY(static ParallelArguments parallelArguments;) 55 SERIALGC_ONLY(static SerialArguments serialArguments;) 56 57 // Table of supported GCs, for translating between command 58 // line flag, CollectedHeap::Name and GCArguments instance. 59 static const SupportedGC SupportedGCs[] = { 60 CMSGC_ONLY_ARG(SupportedGC(UseConcMarkSweepGC, CollectedHeap::CMS, cmsArguments)) 61 G1GC_ONLY_ARG(SupportedGC(UseG1GC, CollectedHeap::G1, g1Arguments)) 62 PARALLELGC_ONLY_ARG(SupportedGC(UseParallelGC, CollectedHeap::Parallel, parallelArguments)) 63 PARALLELGC_ONLY_ARG(SupportedGC(UseParallelOldGC, CollectedHeap::Parallel, parallelArguments)) 64 SERIALGC_ONLY_ARG(SupportedGC(UseSerialGC, CollectedHeap::Serial, serialArguments)) 65 }; 66 67 GCArguments* GCConfig::_arguments = NULL; 68 bool GCConfig::_gc_selected_ergonomically = false; 69 70 void GCConfig::select_gc_ergonomically() { 71 if (os::is_server_class_machine()) { 72 #if INCLUDE_G1GC 73 FLAG_SET_ERGO_IF_DEFAULT(bool, UseG1GC, true); 74 #elif INCLUDE_PARALLELGC 75 FLAG_SET_ERGO_IF_DEFAULT(bool, UseParallelGC, true); 76 #elif INCLUDE_SERIALGC 77 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true); 78 #endif 79 } else { 80 #if INCLUDE_SERIALGC 81 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true); 82 #endif 83 } 84 85 NOT_CMSGC(UNSUPPORTED_OPTION(UseConcMarkSweepGC)); 86 NOT_G1GC(UNSUPPORTED_OPTION(UseG1GC);) 87 NOT_PARALLELGC(UNSUPPORTED_OPTION(UseParallelGC);) 88 NOT_PARALLELGC(UNSUPPORTED_OPTION(UseParallelOldGC)); 89 NOT_SERIALGC(UNSUPPORTED_OPTION(UseSerialGC);) 90 } 91 92 bool GCConfig::is_no_gc_selected() { 93 for (size_t i = 0; i < ARRAY_SIZE(SupportedGCs); i++) { 94 if (SupportedGCs[i]._flag) { 95 return false; 96 } 97 } 98 99 return true; 100 } 101 102 bool GCConfig::is_exactly_one_gc_selected() { 103 CollectedHeap::Name selected = CollectedHeap::None; 104 105 for (size_t i = 0; i < ARRAY_SIZE(SupportedGCs); i++) { 106 if (SupportedGCs[i]._flag) { 107 if (SupportedGCs[i]._name == selected || selected == CollectedHeap::None) { 108 // Selected 109 selected = SupportedGCs[i]._name; |