1 /*
 2  * Copyright (c) 2017, 2022, Red Hat, Inc. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 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
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23  */
24 
25 #ifndef SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
26 #define SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP
27 
28 #include "memory/allStatic.hpp"
29 
30 class ShenandoahWorkerPolicy : AllStatic {
31 public:
32   // Calculate the number of workers for initial marking
33   static uint calc_workers_for_init_marking();
34 
35   // Calculate the number of workers for concurrent marking
36   static uint calc_workers_for_conc_marking();
37 
38   // Calculate the number of workers for final marking
39   static uint calc_workers_for_final_marking();
40 
41   // Calculate workers for concurrent root processing
42   static uint calc_workers_for_conc_root_processing();
43 
44   // Calculate workers for concurrent refs processing
45   static uint calc_workers_for_conc_refs_processing();
46 
47   // Calculate workers for concurrent evacuation (concurrent GC)
48   static uint calc_workers_for_conc_evac();
49 
50   // Calculate workers for parallel full gc
51   static uint calc_workers_for_fullgc();
52 
53   // Calculate workers for parallel degenerated gc
54   static uint calc_workers_for_stw_degenerated();
55 
56   // Calculate workers for concurrent reference update
57   static uint calc_workers_for_conc_update_ref();
58 
59   // Calculate workers for parallel/final reference update
60   static uint calc_workers_for_final_update_ref();
61 
62   // Calculate workers for concurrent reset
63   static uint calc_workers_for_conc_reset();
64 };
65 
66 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHWORKERPOLICY_HPP