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/gcArguments.hpp"
27 #include "gc/serial/serialArguments.hpp"
28 #include "memory/allocation.inline.hpp"
29 #include "runtime/arguments.hpp"
30 #include "runtime/globals.hpp"
31 #include "runtime/globals_extension.hpp"
32 #include "runtime/java.hpp"
33 #include "runtime/os.hpp"
34 #include "utilities/defaultStream.hpp"
35 #include "utilities/macros.hpp"
36
37 #if INCLUDE_ALL_GCS
38 #include "gc/parallel/parallelArguments.hpp"
39 #include "gc/cms/cmsArguments.hpp"
40 #include "gc/g1/g1Arguments.hpp"
41 #endif
42
43 GCArguments* GCArguments::_instance = NULL;
44
45 GCArguments* GCArguments::arguments() {
46 assert(is_initialized(), "Heap factory not yet created");
47 return _instance;
67 }
68 }
69 }
70
71 void GCArguments::select_gc_ergonomically() {
72 #if INCLUDE_ALL_GCS
73 if (os::is_server_class_machine()) {
74 FLAG_SET_ERGO_IF_DEFAULT(bool, UseG1GC, true);
75 } else {
76 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true);
77 }
78 #else
79 UNSUPPORTED_OPTION(UseG1GC);
80 UNSUPPORTED_OPTION(UseParallelGC);
81 UNSUPPORTED_OPTION(UseParallelOldGC);
82 UNSUPPORTED_OPTION(UseConcMarkSweepGC);
83 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true);
84 #endif // INCLUDE_ALL_GCS
85 }
86
87 void GCArguments::initialize_flags() {
88 #if INCLUDE_ALL_GCS
89 if (MinHeapFreeRatio == 100) {
90 // Keeping the heap 100% free is hard ;-) so limit it to 99%.
91 FLAG_SET_ERGO(uintx, MinHeapFreeRatio, 99);
92 }
93
94 // If class unloading is disabled, also disable concurrent class unloading.
95 if (!ClassUnloading) {
96 FLAG_SET_CMDLINE(bool, CMSClassUnloadingEnabled, false);
97 FLAG_SET_CMDLINE(bool, ClassUnloadingWithConcurrentMark, false);
98 }
99 #endif // INCLUDE_ALL_GCS
100 }
101
102 jint GCArguments::initialize() {
103 assert(!is_initialized(), "GC arguments already initialized");
104
105 select_gc();
106
107 #if !INCLUDE_ALL_GCS
108 if (UseParallelGC || UseParallelOldGC) {
109 jio_fprintf(defaultStream::error_stream(), "UseParallelGC not supported in this VM.\n");
110 return JNI_ERR;
111 } else if (UseG1GC) {
112 jio_fprintf(defaultStream::error_stream(), "UseG1GC not supported in this VM.\n");
113 return JNI_ERR;
114 } else if (UseConcMarkSweepGC) {
115 jio_fprintf(defaultStream::error_stream(), "UseConcMarkSweepGC not supported in this VM.\n");
116 return JNI_ERR;
117 #else
118 if (UseParallelGC || UseParallelOldGC) {
119 _instance = new ParallelArguments();
|
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/gcArguments.hpp"
27 #include "gc/serial/serialArguments.hpp"
28 #include "logging/log.hpp"
29 #include "memory/allocation.inline.hpp"
30 #include "runtime/arguments.hpp"
31 #include "runtime/globals.hpp"
32 #include "runtime/globals_extension.hpp"
33 #include "runtime/java.hpp"
34 #include "runtime/os.hpp"
35 #include "utilities/defaultStream.hpp"
36 #include "utilities/macros.hpp"
37
38 #if INCLUDE_ALL_GCS
39 #include "gc/parallel/parallelArguments.hpp"
40 #include "gc/cms/cmsArguments.hpp"
41 #include "gc/g1/g1Arguments.hpp"
42 #endif
43
44 GCArguments* GCArguments::_instance = NULL;
45
46 GCArguments* GCArguments::arguments() {
47 assert(is_initialized(), "Heap factory not yet created");
48 return _instance;
68 }
69 }
70 }
71
72 void GCArguments::select_gc_ergonomically() {
73 #if INCLUDE_ALL_GCS
74 if (os::is_server_class_machine()) {
75 FLAG_SET_ERGO_IF_DEFAULT(bool, UseG1GC, true);
76 } else {
77 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true);
78 }
79 #else
80 UNSUPPORTED_OPTION(UseG1GC);
81 UNSUPPORTED_OPTION(UseParallelGC);
82 UNSUPPORTED_OPTION(UseParallelOldGC);
83 UNSUPPORTED_OPTION(UseConcMarkSweepGC);
84 FLAG_SET_ERGO_IF_DEFAULT(bool, UseSerialGC, true);
85 #endif // INCLUDE_ALL_GCS
86 }
87
88 void GCArguments::parse_verification_type(const char* type) {
89 log_warning(gc, verify)("VerifyGCType is not supported by this collector.");
90 }
91
92 void GCArguments::initialize_flags() {
93 #if INCLUDE_ALL_GCS
94 if (MinHeapFreeRatio == 100) {
95 // Keeping the heap 100% free is hard ;-) so limit it to 99%.
96 FLAG_SET_ERGO(uintx, MinHeapFreeRatio, 99);
97 }
98
99 // If class unloading is disabled, also disable concurrent class unloading.
100 if (!ClassUnloading) {
101 FLAG_SET_CMDLINE(bool, CMSClassUnloadingEnabled, false);
102 FLAG_SET_CMDLINE(bool, ClassUnloadingWithConcurrentMark, false);
103 }
104 #endif // INCLUDE_ALL_GCS
105 }
106
107 void GCArguments::post_heap_initialize() {
108 if (strlen(VerifyGCType) > 0) {
109 const char delimiter[] = " ,\n";
110 size_t length = strlen(VerifyGCType);
111 char* type_list = NEW_C_HEAP_ARRAY(char, length + 1, mtInternal);
112 strncpy(type_list, VerifyGCType, length + 1);
113 char* token = strtok(type_list, delimiter);
114 while (token != NULL) {
115 parse_verification_type(token);
116 token = strtok(NULL, delimiter);
117 }
118 FREE_C_HEAP_ARRAY(char, type_list);
119 }
120 }
121
122 jint GCArguments::initialize() {
123 assert(!is_initialized(), "GC arguments already initialized");
124
125 select_gc();
126
127 #if !INCLUDE_ALL_GCS
128 if (UseParallelGC || UseParallelOldGC) {
129 jio_fprintf(defaultStream::error_stream(), "UseParallelGC not supported in this VM.\n");
130 return JNI_ERR;
131 } else if (UseG1GC) {
132 jio_fprintf(defaultStream::error_stream(), "UseG1GC not supported in this VM.\n");
133 return JNI_ERR;
134 } else if (UseConcMarkSweepGC) {
135 jio_fprintf(defaultStream::error_stream(), "UseConcMarkSweepGC not supported in this VM.\n");
136 return JNI_ERR;
137 #else
138 if (UseParallelGC || UseParallelOldGC) {
139 _instance = new ParallelArguments();
|