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 "gc/epsilon/epsilonArguments.hpp"
26 #include "gc/epsilon/epsilonHeap.hpp"
27 #include "gc/shared/gcArguments.hpp"
28 #include "gc/shared/tlab_globals.hpp"
29 #include "logging/log.hpp"
30 #include "runtime/globals.hpp"
31 #include "runtime/globals_extension.hpp"
32
33 size_t EpsilonArguments::conservative_max_heap_alignment() {
34 return UseLargePages ? os::large_page_size() : os::vm_page_size();
35 }
36
37 void EpsilonArguments::initialize() {
38 GCArguments::initialize();
39
40 assert(UseEpsilonGC, "Sanity");
41
42 // Forcefully exit when OOME is detected. Nothing we can do at that point.
43 if (FLAG_IS_DEFAULT(ExitOnOutOfMemoryError)) {
44 FLAG_SET_DEFAULT(ExitOnOutOfMemoryError, true);
45 }
46
47 if (EpsilonMaxTLABSize < MinTLABSize) {
48 log_warning(gc)("EpsilonMaxTLABSize < MinTLABSize, adjusting it to %zu", MinTLABSize);
49 EpsilonMaxTLABSize = MinTLABSize;
50 }
51
52 if (!EpsilonElasticTLAB && EpsilonElasticTLABDecay) {
53 log_warning(gc)("Disabling EpsilonElasticTLABDecay because EpsilonElasticTLAB is disabled");
54 FLAG_SET_DEFAULT(EpsilonElasticTLABDecay, false);
55 }
56
57 #ifdef COMPILER2
58 // Enable loop strip mining: there are still non-GC safepoints, no need to make it worse
|
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 "gc/epsilon/epsilonArguments.hpp"
26 #include "gc/epsilon/epsilonHeap.hpp"
27 #include "gc/shared/fullGCForwarding.hpp"
28 #include "gc/shared/gcArguments.hpp"
29 #include "gc/shared/tlab_globals.hpp"
30 #include "logging/log.hpp"
31 #include "runtime/globals.hpp"
32 #include "runtime/globals_extension.hpp"
33
34 size_t EpsilonArguments::conservative_max_heap_alignment() {
35 return UseLargePages ? os::large_page_size() : os::vm_page_size();
36 }
37
38 void EpsilonArguments::initialize() {
39 GCArguments::initialize();
40 FullGCForwarding::initialize_flags(MaxHeapSize);
41
42 assert(UseEpsilonGC, "Sanity");
43
44 // Forcefully exit when OOME is detected. Nothing we can do at that point.
45 if (FLAG_IS_DEFAULT(ExitOnOutOfMemoryError)) {
46 FLAG_SET_DEFAULT(ExitOnOutOfMemoryError, true);
47 }
48
49 if (EpsilonMaxTLABSize < MinTLABSize) {
50 log_warning(gc)("EpsilonMaxTLABSize < MinTLABSize, adjusting it to %zu", MinTLABSize);
51 EpsilonMaxTLABSize = MinTLABSize;
52 }
53
54 if (!EpsilonElasticTLAB && EpsilonElasticTLABDecay) {
55 log_warning(gc)("Disabling EpsilonElasticTLABDecay because EpsilonElasticTLAB is disabled");
56 FLAG_SET_DEFAULT(EpsilonElasticTLABDecay, false);
57 }
58
59 #ifdef COMPILER2
60 // Enable loop strip mining: there are still non-GC safepoints, no need to make it worse
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