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/g1/concurrentG1Refine.hpp"
27 #include "gc/g1/concurrentG1RefineThread.hpp"
28 #include "gc/g1/g1CollectedHeap.inline.hpp"
29 #include "gc/g1/g1HotCardCache.hpp"
30 #include "runtime/java.hpp"
31
32 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h, CardTableEntryClosure* refine_closure) :
33 _threads(NULL), _n_threads(0),
34 _hot_card_cache(g1h)
35 {
36 // Ergonomically select initial concurrent refinement parameters
37 if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
38 FLAG_SET_DEFAULT(G1ConcRefinementGreenZone, MAX2<int>(ParallelGCThreads, 1));
39 }
40 set_green_zone(G1ConcRefinementGreenZone);
41
42 if (FLAG_IS_DEFAULT(G1ConcRefinementYellowZone)) {
43 FLAG_SET_DEFAULT(G1ConcRefinementYellowZone, green_zone() * 3);
44 }
45 set_yellow_zone(MAX2<int>(G1ConcRefinementYellowZone, green_zone()));
46
47 if (FLAG_IS_DEFAULT(G1ConcRefinementRedZone)) {
48 FLAG_SET_DEFAULT(G1ConcRefinementRedZone, yellow_zone() * 2);
49 }
50 set_red_zone(MAX2<int>(G1ConcRefinementRedZone, yellow_zone()));
51
52 _n_worker_threads = thread_num();
53 // We need one extra thread to do the young gen rset size sampling.
54 _n_threads = _n_worker_threads + 1;
55
56 reset_threshold_step();
57
58 _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads, mtGC);
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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/g1/concurrentG1Refine.hpp"
27 #include "gc/g1/concurrentG1RefineThread.hpp"
28 #include "gc/g1/g1CollectedHeap.inline.hpp"
29 #include "gc/g1/g1HotCardCache.hpp"
30 #include "runtime/java.hpp"
31
32 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h, CardTableEntryClosure* refine_closure) :
33 _threads(NULL), _n_threads(0),
34 _hot_card_cache(g1h)
35 {
36 // Ergonomically select initial concurrent refinement parameters
37 if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
38 FLAG_SET_DEFAULT(G1ConcRefinementGreenZone, (intx)ParallelGCThreads);
39 }
40 set_green_zone(G1ConcRefinementGreenZone);
41
42 if (FLAG_IS_DEFAULT(G1ConcRefinementYellowZone)) {
43 FLAG_SET_DEFAULT(G1ConcRefinementYellowZone, green_zone() * 3);
44 }
45 set_yellow_zone(MAX2<int>(G1ConcRefinementYellowZone, green_zone()));
46
47 if (FLAG_IS_DEFAULT(G1ConcRefinementRedZone)) {
48 FLAG_SET_DEFAULT(G1ConcRefinementRedZone, yellow_zone() * 2);
49 }
50 set_red_zone(MAX2<int>(G1ConcRefinementRedZone, yellow_zone()));
51
52 _n_worker_threads = thread_num();
53 // We need one extra thread to do the young gen rset size sampling.
54 _n_threads = _n_worker_threads + 1;
55
56 reset_threshold_step();
57
58 _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads, mtGC);
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