1 /*
2 * Copyright Amazon.com Inc. or its affiliates. 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
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26
27 #include "gc/shenandoah/shenandoahCollectorPolicy.hpp"
28 #include "unittest.hpp"
29
30 TEST(ShenandoahCollectorPolicyTest, track_degen_cycles_sanity) {
31 ShenandoahCollectorPolicy policy;
32 EXPECT_EQ(policy.consecutive_degenerated_gc_count(), 0UL);
33 EXPECT_EQ(policy.generational_should_upgrade_degenerated_gc(), false);
34 }
35
36 TEST(ShenandoahCollectorPolicyTest, track_degen_cycles_no_upgrade) {
37 ShenandoahCollectorPolicy policy;
38 policy.record_degenerated(true, true, true);
39 policy.record_degenerated(true, true, true);
40 EXPECT_EQ(policy.consecutive_degenerated_gc_count(), 2UL);
41 EXPECT_EQ(policy.generational_should_upgrade_degenerated_gc(), false);
42 }
43
44 TEST(ShenandoahCollectorPolicyTest, track_degen_cycles_upgrade) {
45 ShenandoahCollectorPolicy policy;
46 policy.record_degenerated(true, true, false);
47 policy.record_degenerated(true, true, false);
48 EXPECT_EQ(policy.consecutive_degenerated_gc_count(), 2UL);
49 EXPECT_EQ(policy.generational_should_upgrade_degenerated_gc(), true);
50 }
51
52 TEST(ShenandoahCollectorPolicyTest, track_degen_cycles_reset_progress) {
53 ShenandoahCollectorPolicy policy;
54 policy.record_degenerated(true, true, false);
55 policy.record_degenerated(true, true, true);
56 EXPECT_EQ(policy.consecutive_degenerated_gc_count(), 2UL);
57 EXPECT_EQ(policy.generational_should_upgrade_degenerated_gc(), false);
58 }
59
60 TEST(ShenandoahCollectorPolicyTest, track_degen_cycles_full_reset) {
61 ShenandoahCollectorPolicy policy;
62 policy.record_degenerated(true, true, false);
63 policy.record_success_full();
64 EXPECT_EQ(policy.consecutive_degenerated_gc_count(), 0UL);
65 EXPECT_EQ(policy.generational_should_upgrade_degenerated_gc(), false);
66 }
67
68 TEST(ShenandoahCollectorPolicyTest, track_degen_cycles_reset) {
69 ShenandoahCollectorPolicy policy;
70 policy.record_degenerated(true, true, false);
71 policy.record_success_concurrent(true, true);
72 EXPECT_EQ(policy.consecutive_degenerated_gc_count(), 0UL);
73 EXPECT_EQ(policy.generational_should_upgrade_degenerated_gc(), false);
74 }