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
27 #include "gc/shared/workerPolicy.hpp"
28 #include "gc/shenandoah/shenandoahWorkerPolicy.hpp"
29 #include "runtime/thread.hpp"
30
31 uint ShenandoahWorkerPolicy::_prev_par_marking = 0;
32 uint ShenandoahWorkerPolicy::_prev_conc_marking = 0;
33 uint ShenandoahWorkerPolicy::_prev_conc_evac = 0;
34 uint ShenandoahWorkerPolicy::_prev_conc_root_proc = 0;
35 uint ShenandoahWorkerPolicy::_prev_fullgc = 0;
36 uint ShenandoahWorkerPolicy::_prev_degengc = 0;
37 uint ShenandoahWorkerPolicy::_prev_conc_update_ref = 0;
38 uint ShenandoahWorkerPolicy::_prev_par_update_ref = 0;
39 uint ShenandoahWorkerPolicy::_prev_conc_cleanup = 0;
40 uint ShenandoahWorkerPolicy::_prev_conc_reset = 0;
41
42 uint ShenandoahWorkerPolicy::calc_workers_for_init_marking() {
43 uint active_workers = (_prev_par_marking == 0) ? ParallelGCThreads : _prev_par_marking;
44
45 _prev_par_marking =
46 WorkerPolicy::calc_active_workers(ParallelGCThreads,
47 active_workers,
48 Threads::number_of_non_daemon_threads());
49 return _prev_par_marking;
50 }
51
52 uint ShenandoahWorkerPolicy::calc_workers_for_conc_marking() {
53 uint active_workers = (_prev_conc_marking == 0) ? ConcGCThreads : _prev_conc_marking;
56 active_workers,
57 Threads::number_of_non_daemon_threads());
58 return _prev_conc_marking;
59 }
60
61 // Reuse the calculation result from init marking
62 uint ShenandoahWorkerPolicy::calc_workers_for_final_marking() {
63 return _prev_par_marking;
64 }
65
66 // Calculate workers for concurrent root processing
67 uint ShenandoahWorkerPolicy::calc_workers_for_conc_root_processing() {
68 uint active_workers = (_prev_conc_root_proc == 0) ? ConcGCThreads : _prev_conc_root_proc;
69 _prev_conc_root_proc =
70 WorkerPolicy::calc_active_conc_workers(ConcGCThreads,
71 active_workers,
72 Threads::number_of_non_daemon_threads());
73 return _prev_conc_root_proc;
74 }
75
76 // Calculate workers for concurrent evacuation (concurrent GC)
77 uint ShenandoahWorkerPolicy::calc_workers_for_conc_evac() {
78 uint active_workers = (_prev_conc_evac == 0) ? ConcGCThreads : _prev_conc_evac;
79 _prev_conc_evac =
80 WorkerPolicy::calc_active_conc_workers(ConcGCThreads,
81 active_workers,
82 Threads::number_of_non_daemon_threads());
83 return _prev_conc_evac;
84 }
85
86 // Calculate workers for parallel fullgc
87 uint ShenandoahWorkerPolicy::calc_workers_for_fullgc() {
88 uint active_workers = (_prev_fullgc == 0) ? ParallelGCThreads : _prev_fullgc;
89 _prev_fullgc =
90 WorkerPolicy::calc_active_workers(ParallelGCThreads,
91 active_workers,
92 Threads::number_of_non_daemon_threads());
93 return _prev_fullgc;
94 }
95
96 // Calculate workers for parallel degenerated gc
97 uint ShenandoahWorkerPolicy::calc_workers_for_stw_degenerated() {
98 uint active_workers = (_prev_degengc == 0) ? ParallelGCThreads : _prev_degengc;
99 _prev_degengc =
100 WorkerPolicy::calc_active_workers(ParallelGCThreads,
101 active_workers,
102 Threads::number_of_non_daemon_threads());
103 return _prev_degengc;
104 }
105
106 // Calculate workers for concurrent reference update
107 uint ShenandoahWorkerPolicy::calc_workers_for_conc_update_ref() {
108 uint active_workers = (_prev_conc_update_ref == 0) ? ConcGCThreads : _prev_conc_update_ref;
109 _prev_conc_update_ref =
110 WorkerPolicy::calc_active_conc_workers(ConcGCThreads,
111 active_workers,
112 Threads::number_of_non_daemon_threads());
113 return _prev_conc_update_ref;
114 }
115
116 // Calculate workers for parallel reference update
117 uint ShenandoahWorkerPolicy::calc_workers_for_final_update_ref() {
118 uint active_workers = (_prev_par_update_ref == 0) ? ParallelGCThreads : _prev_par_update_ref;
119 _prev_par_update_ref =
120 WorkerPolicy::calc_active_workers(ParallelGCThreads,
121 active_workers,
122 Threads::number_of_non_daemon_threads());
123 return _prev_par_update_ref;
124 }
125
126 uint ShenandoahWorkerPolicy::calc_workers_for_conc_preclean() {
127 // Precleaning is single-threaded
128 return 1;
129 }
130
131 uint ShenandoahWorkerPolicy::calc_workers_for_conc_cleanup() {
132 uint active_workers = (_prev_conc_cleanup == 0) ? ConcGCThreads : _prev_conc_cleanup;
133 _prev_conc_cleanup =
|
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
27 #include "gc/shared/workerPolicy.hpp"
28 #include "gc/shenandoah/shenandoahWorkerPolicy.hpp"
29 #include "runtime/thread.hpp"
30
31 uint ShenandoahWorkerPolicy::_prev_par_marking = 0;
32 uint ShenandoahWorkerPolicy::_prev_conc_marking = 0;
33 uint ShenandoahWorkerPolicy::_prev_conc_evac_update= 0;
34 uint ShenandoahWorkerPolicy::_prev_conc_root_proc = 0;
35 uint ShenandoahWorkerPolicy::_prev_fullgc = 0;
36 uint ShenandoahWorkerPolicy::_prev_degengc = 0;
37 uint ShenandoahWorkerPolicy::_prev_conc_update_ref = 0;
38 uint ShenandoahWorkerPolicy::_prev_par_update_ref = 0;
39 uint ShenandoahWorkerPolicy::_prev_conc_cleanup = 0;
40 uint ShenandoahWorkerPolicy::_prev_conc_reset = 0;
41
42 uint ShenandoahWorkerPolicy::calc_workers_for_init_marking() {
43 uint active_workers = (_prev_par_marking == 0) ? ParallelGCThreads : _prev_par_marking;
44
45 _prev_par_marking =
46 WorkerPolicy::calc_active_workers(ParallelGCThreads,
47 active_workers,
48 Threads::number_of_non_daemon_threads());
49 return _prev_par_marking;
50 }
51
52 uint ShenandoahWorkerPolicy::calc_workers_for_conc_marking() {
53 uint active_workers = (_prev_conc_marking == 0) ? ConcGCThreads : _prev_conc_marking;
56 active_workers,
57 Threads::number_of_non_daemon_threads());
58 return _prev_conc_marking;
59 }
60
61 // Reuse the calculation result from init marking
62 uint ShenandoahWorkerPolicy::calc_workers_for_final_marking() {
63 return _prev_par_marking;
64 }
65
66 // Calculate workers for concurrent root processing
67 uint ShenandoahWorkerPolicy::calc_workers_for_conc_root_processing() {
68 uint active_workers = (_prev_conc_root_proc == 0) ? ConcGCThreads : _prev_conc_root_proc;
69 _prev_conc_root_proc =
70 WorkerPolicy::calc_active_conc_workers(ConcGCThreads,
71 active_workers,
72 Threads::number_of_non_daemon_threads());
73 return _prev_conc_root_proc;
74 }
75
76 // Calculate workers for concurrent evac-update (concurrent GC)
77 uint ShenandoahWorkerPolicy::calc_workers_for_conc_evac_update() {
78 uint active_workers = (_prev_conc_evac_update == 0) ? ConcGCThreads : _prev_conc_evac_update;
79 _prev_conc_evac_update =
80 WorkerPolicy::calc_active_conc_workers(ConcGCThreads,
81 active_workers,
82 Threads::number_of_non_daemon_threads());
83 return _prev_conc_evac_update;
84 }
85
86 // Calculate workers for parallel fullgc
87 uint ShenandoahWorkerPolicy::calc_workers_for_fullgc() {
88 uint active_workers = (_prev_fullgc == 0) ? ParallelGCThreads : _prev_fullgc;
89 _prev_fullgc =
90 WorkerPolicy::calc_active_workers(ParallelGCThreads,
91 active_workers,
92 Threads::number_of_non_daemon_threads());
93 return _prev_fullgc;
94 }
95
96 // Calculate workers for parallel degenerated gc
97 uint ShenandoahWorkerPolicy::calc_workers_for_stw_degenerated() {
98 uint active_workers = (_prev_degengc == 0) ? ParallelGCThreads : _prev_degengc;
99 _prev_degengc =
100 WorkerPolicy::calc_active_workers(ParallelGCThreads,
101 active_workers,
102 Threads::number_of_non_daemon_threads());
103 return _prev_degengc;
104 }
105
106 // Calculate workers for parallel reference update
107 uint ShenandoahWorkerPolicy::calc_workers_for_final_update_ref() {
108 uint active_workers = (_prev_par_update_ref == 0) ? ParallelGCThreads : _prev_par_update_ref;
109 _prev_par_update_ref =
110 WorkerPolicy::calc_active_workers(ParallelGCThreads,
111 active_workers,
112 Threads::number_of_non_daemon_threads());
113 return _prev_par_update_ref;
114 }
115
116 uint ShenandoahWorkerPolicy::calc_workers_for_conc_preclean() {
117 // Precleaning is single-threaded
118 return 1;
119 }
120
121 uint ShenandoahWorkerPolicy::calc_workers_for_conc_cleanup() {
122 uint active_workers = (_prev_conc_cleanup == 0) ? ConcGCThreads : _prev_conc_cleanup;
123 _prev_conc_cleanup =
|