1/*
2 * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
25#define SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
26
27#include "memory/allocation.hpp"
28
29class ShenandoahWorkerPolicy : AllStatic {
30private:
31 static uint _prev_par_marking;
32 static uint _prev_conc_marking;
33 static uint _prev_conc_evac;
34 static uint _prev_fullgc;
35 static uint _prev_degengc;
36 static uint _prev_stw_traversal;
37 static uint _prev_conc_traversal;
38 static uint _prev_conc_update_ref;
39 static uint _prev_par_update_ref;
40 static uint _prev_conc_cleanup;
41 static uint _prev_conc_reset;
42
43public:
44 // Calculate the number of workers for initial marking
45 static uint calc_workers_for_init_marking();
46
47 // Calculate the number of workers for concurrent marking
48 static uint calc_workers_for_conc_marking();
49
50 // Calculate the number of workers for final marking
51 static uint calc_workers_for_final_marking();
52
53 // Calculate workers for concurrent evacuation (concurrent GC)
54 static uint calc_workers_for_conc_evac();
55
56 // Calculate workers for parallel full gc
57 static uint calc_workers_for_fullgc();
58
59 // Calculate workers for parallel degenerated gc
60 static uint calc_workers_for_stw_degenerated();
61
62 // Calculate workers for Stop-the-world traversal GC
63 static uint calc_workers_for_stw_traversal();
64
65 // Calculate workers for concurrent traversal GC
66 static uint calc_workers_for_conc_traversal();
67
68 // Calculate workers for concurrent reference update
69 static uint calc_workers_for_conc_update_ref();
70
71 // Calculate workers for parallel/final reference update
72 static uint calc_workers_for_final_update_ref();
73
74 // Calculate workers for concurrent precleaning
75 static uint calc_workers_for_conc_preclean();
76
77 // Calculate workers for concurrent cleanup
78 static uint calc_workers_for_conc_cleanup();
79
80 // Calculate workers for concurrent reset
81 static uint calc_workers_for_conc_reset();
82};
83
84#endif // SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
85