author | tbenson |
Mon, 21 Mar 2016 15:59:58 -0400 | |
changeset 37170 | 355117fc6eab |
parent 37039 | 79f62b89a7a6 |
child 37262 | e7b7bc691d7d |
permissions | -rw-r--r-- |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
1 |
/* |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
2 |
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
4 |
* |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
5 |
* This code is free software; you can redistribute it and/or modify it |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
7 |
* published by the Free Software Foundation. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
8 |
* |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
9 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
10 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
11 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
12 |
* version 2 for more details (a copy is included in the LICENSE file that |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
13 |
* accompanied this code). |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
14 |
* |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
15 |
* You should have received a copy of the GNU General Public License version |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
16 |
* 2 along with this work; if not, write to the Free Software Foundation, |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
17 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
18 |
* |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
21 |
* questions. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
22 |
* |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
23 |
*/ |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
24 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
25 |
#include "precompiled.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
26 |
#include "gc/g1/g1CollectedHeap.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
27 |
#include "gc/g1/g1CollectionSet.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
28 |
#include "gc/g1/g1CollectorPolicy.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
29 |
#include "gc/g1/g1CollectorState.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
30 |
#include "gc/g1/heapRegion.inline.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
31 |
#include "gc/g1/heapRegionRemSet.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
32 |
#include "gc/g1/heapRegionSet.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
33 |
#include "utilities/debug.hpp" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
34 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
35 |
G1CollectorState* G1CollectionSet::collector_state() { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
36 |
return _g1->collector_state(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
37 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
38 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
39 |
G1GCPhaseTimes* G1CollectionSet::phase_times() { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
40 |
return _policy->phase_times(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
41 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
42 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
43 |
CollectionSetChooser* G1CollectionSet::cset_chooser() { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
44 |
return _cset_chooser; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
45 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
46 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
47 |
double G1CollectionSet::predict_region_elapsed_time_ms(HeapRegion* hr) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
48 |
return _policy->predict_region_elapsed_time_ms(hr, collector_state()->gcs_are_young()); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
49 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
50 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
51 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
52 |
G1CollectionSet::G1CollectionSet(G1CollectedHeap* g1h) : |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
53 |
_g1(g1h), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
54 |
_policy(NULL), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
55 |
_cset_chooser(new CollectionSetChooser()), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
56 |
_eden_region_length(0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
57 |
_survivor_region_length(0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
58 |
_old_region_length(0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
59 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
60 |
_head(NULL), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
61 |
_bytes_used_before(0), |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
62 |
_bytes_live_before(0), |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
63 |
_recorded_rs_lengths(0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
64 |
// Incremental CSet attributes |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
65 |
_inc_build_state(Inactive), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
66 |
_inc_head(NULL), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
67 |
_inc_tail(NULL), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
68 |
_inc_bytes_used_before(0), |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
69 |
_inc_bytes_live_before(0), |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
70 |
_inc_recorded_rs_lengths(0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
71 |
_inc_recorded_rs_lengths_diffs(0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
72 |
_inc_predicted_elapsed_time_ms(0.0), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
73 |
_inc_predicted_elapsed_time_ms_diffs(0.0) {} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
74 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
75 |
G1CollectionSet::~G1CollectionSet() { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
76 |
delete _cset_chooser; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
77 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
78 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
79 |
void G1CollectionSet::init_region_lengths(uint eden_cset_region_length, |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
80 |
uint survivor_cset_region_length) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
81 |
_eden_region_length = eden_cset_region_length; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
82 |
_survivor_region_length = survivor_cset_region_length; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
83 |
_old_region_length = 0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
84 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
85 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
86 |
void G1CollectionSet::set_recorded_rs_lengths(size_t rs_lengths) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
87 |
_recorded_rs_lengths = rs_lengths; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
88 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
89 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
90 |
// Add the heap region at the head of the non-incremental collection set |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
91 |
void G1CollectionSet::add_old_region(HeapRegion* hr) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
92 |
assert(_inc_build_state == Active, "Precondition"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
93 |
assert(hr->is_old(), "the region should be old"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
94 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
95 |
assert(!hr->in_collection_set(), "should not already be in the CSet"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
96 |
_g1->register_old_region_with_cset(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
97 |
hr->set_next_in_collection_set(_head); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
98 |
_head = hr; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
99 |
_bytes_used_before += hr->used(); |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
100 |
_bytes_live_before += hr->live_bytes(); |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
101 |
size_t rs_length = hr->rem_set()->occupied(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
102 |
_recorded_rs_lengths += rs_length; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
103 |
_old_region_length += 1; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
104 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
105 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
106 |
// Initialize the per-collection-set information |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
107 |
void G1CollectionSet::start_incremental_building() { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
108 |
assert(_inc_build_state == Inactive, "Precondition"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
109 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
110 |
_inc_head = NULL; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
111 |
_inc_tail = NULL; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
112 |
_inc_bytes_used_before = 0; |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
113 |
_inc_bytes_live_before = 0; |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
114 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
115 |
_inc_recorded_rs_lengths = 0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
116 |
_inc_recorded_rs_lengths_diffs = 0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
117 |
_inc_predicted_elapsed_time_ms = 0.0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
118 |
_inc_predicted_elapsed_time_ms_diffs = 0.0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
119 |
_inc_build_state = Active; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
120 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
121 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
122 |
void G1CollectionSet::finalize_incremental_building() { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
123 |
assert(_inc_build_state == Active, "Precondition"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
124 |
assert(SafepointSynchronize::is_at_safepoint(), "should be at a safepoint"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
125 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
126 |
// The two "main" fields, _inc_recorded_rs_lengths and |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
127 |
// _inc_predicted_elapsed_time_ms, are updated by the thread |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
128 |
// that adds a new region to the CSet. Further updates by the |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
129 |
// concurrent refinement thread that samples the young RSet lengths |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
130 |
// are accumulated in the *_diffs fields. Here we add the diffs to |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
131 |
// the "main" fields. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
132 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
133 |
if (_inc_recorded_rs_lengths_diffs >= 0) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
134 |
_inc_recorded_rs_lengths += _inc_recorded_rs_lengths_diffs; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
135 |
} else { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
136 |
// This is defensive. The diff should in theory be always positive |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
137 |
// as RSets can only grow between GCs. However, given that we |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
138 |
// sample their size concurrently with other threads updating them |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
139 |
// it's possible that we might get the wrong size back, which |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
140 |
// could make the calculations somewhat inaccurate. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
141 |
size_t diffs = (size_t) (-_inc_recorded_rs_lengths_diffs); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
142 |
if (_inc_recorded_rs_lengths >= diffs) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
143 |
_inc_recorded_rs_lengths -= diffs; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
144 |
} else { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
145 |
_inc_recorded_rs_lengths = 0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
146 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
147 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
148 |
_inc_predicted_elapsed_time_ms += _inc_predicted_elapsed_time_ms_diffs; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
149 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
150 |
_inc_recorded_rs_lengths_diffs = 0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
151 |
_inc_predicted_elapsed_time_ms_diffs = 0.0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
152 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
153 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
154 |
void G1CollectionSet::update_young_region_prediction(HeapRegion* hr, |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
155 |
size_t new_rs_length) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
156 |
// Update the CSet information that is dependent on the new RS length |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
157 |
assert(hr->is_young(), "Precondition"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
158 |
assert(!SafepointSynchronize::is_at_safepoint(), "should not be at a safepoint"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
159 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
160 |
// We could have updated _inc_recorded_rs_lengths and |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
161 |
// _inc_predicted_elapsed_time_ms directly but we'd need to do |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
162 |
// that atomically, as this code is executed by a concurrent |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
163 |
// refinement thread, potentially concurrently with a mutator thread |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
164 |
// allocating a new region and also updating the same fields. To |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
165 |
// avoid the atomic operations we accumulate these updates on two |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
166 |
// separate fields (*_diffs) and we'll just add them to the "main" |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
167 |
// fields at the start of a GC. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
168 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
169 |
ssize_t old_rs_length = (ssize_t) hr->recorded_rs_length(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
170 |
ssize_t rs_lengths_diff = (ssize_t) new_rs_length - old_rs_length; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
171 |
_inc_recorded_rs_lengths_diffs += rs_lengths_diff; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
172 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
173 |
double old_elapsed_time_ms = hr->predicted_elapsed_time_ms(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
174 |
double new_region_elapsed_time_ms = predict_region_elapsed_time_ms(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
175 |
double elapsed_ms_diff = new_region_elapsed_time_ms - old_elapsed_time_ms; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
176 |
_inc_predicted_elapsed_time_ms_diffs += elapsed_ms_diff; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
177 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
178 |
hr->set_recorded_rs_length(new_rs_length); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
179 |
hr->set_predicted_elapsed_time_ms(new_region_elapsed_time_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
180 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
181 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
182 |
void G1CollectionSet::add_young_region_common(HeapRegion* hr) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
183 |
assert(hr->is_young(), "invariant"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
184 |
assert(hr->young_index_in_cset() > -1, "should have already been set"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
185 |
assert(_inc_build_state == Active, "Precondition"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
186 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
187 |
// This routine is used when: |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
188 |
// * adding survivor regions to the incremental cset at the end of an |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
189 |
// evacuation pause or |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
190 |
// * adding the current allocation region to the incremental cset |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
191 |
// when it is retired. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
192 |
// Therefore this routine may be called at a safepoint by the |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
193 |
// VM thread, or in-between safepoints by mutator threads (when |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
194 |
// retiring the current allocation region) |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
195 |
// We need to clear and set the cached recorded/cached collection set |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
196 |
// information in the heap region here (before the region gets added |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
197 |
// to the collection set). An individual heap region's cached values |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
198 |
// are calculated, aggregated with the policy collection set info, |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
199 |
// and cached in the heap region here (initially) and (subsequently) |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
200 |
// by the Young List sampling code. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
201 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
202 |
size_t rs_length = hr->rem_set()->occupied(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
203 |
double region_elapsed_time_ms = predict_region_elapsed_time_ms(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
204 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
205 |
// Cache the values we have added to the aggregated information |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
206 |
// in the heap region in case we have to remove this region from |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
207 |
// the incremental collection set, or it is updated by the |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
208 |
// rset sampling code |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
209 |
hr->set_recorded_rs_length(rs_length); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
210 |
hr->set_predicted_elapsed_time_ms(region_elapsed_time_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
211 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
212 |
size_t used_bytes = hr->used(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
213 |
_inc_recorded_rs_lengths += rs_length; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
214 |
_inc_predicted_elapsed_time_ms += region_elapsed_time_ms; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
215 |
_inc_bytes_used_before += used_bytes; |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
216 |
_inc_bytes_live_before += hr->live_bytes(); |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
217 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
218 |
assert(!hr->in_collection_set(), "invariant"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
219 |
_g1->register_young_region_with_cset(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
220 |
assert(hr->next_in_collection_set() == NULL, "invariant"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
221 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
222 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
223 |
// Add the region at the RHS of the incremental cset |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
224 |
void G1CollectionSet::add_survivor_regions(HeapRegion* hr) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
225 |
// We should only ever be appending survivors at the end of a pause |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
226 |
assert(hr->is_survivor(), "Logic"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
227 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
228 |
// Do the 'common' stuff |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
229 |
add_young_region_common(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
230 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
231 |
// Now add the region at the right hand side |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
232 |
if (_inc_tail == NULL) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
233 |
assert(_inc_head == NULL, "invariant"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
234 |
_inc_head = hr; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
235 |
} else { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
236 |
_inc_tail->set_next_in_collection_set(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
237 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
238 |
_inc_tail = hr; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
239 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
240 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
241 |
// Add the region to the LHS of the incremental cset |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
242 |
void G1CollectionSet::add_eden_region(HeapRegion* hr) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
243 |
// Survivors should be added to the RHS at the end of a pause |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
244 |
assert(hr->is_eden(), "Logic"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
245 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
246 |
// Do the 'common' stuff |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
247 |
add_young_region_common(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
248 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
249 |
// Add the region at the left hand side |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
250 |
hr->set_next_in_collection_set(_inc_head); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
251 |
if (_inc_head == NULL) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
252 |
assert(_inc_tail == NULL, "Invariant"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
253 |
_inc_tail = hr; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
254 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
255 |
_inc_head = hr; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
256 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
257 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
258 |
#ifndef PRODUCT |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
259 |
void G1CollectionSet::print(HeapRegion* list_head, outputStream* st) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
260 |
assert(list_head == inc_head() || list_head == head(), "must be"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
261 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
262 |
st->print_cr("\nCollection_set:"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
263 |
HeapRegion* csr = list_head; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
264 |
while (csr != NULL) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
265 |
HeapRegion* next = csr->next_in_collection_set(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
266 |
assert(csr->in_collection_set(), "bad CS"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
267 |
st->print_cr(" " HR_FORMAT ", P: " PTR_FORMAT "N: " PTR_FORMAT ", age: %4d", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
268 |
HR_FORMAT_PARAMS(csr), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
269 |
p2i(csr->prev_top_at_mark_start()), p2i(csr->next_top_at_mark_start()), |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
270 |
csr->age_in_surv_rate_group_cond()); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
271 |
csr = next; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
272 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
273 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
274 |
#endif // !PRODUCT |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
275 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
276 |
double G1CollectionSet::finalize_young_part(double target_pause_time_ms) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
277 |
double young_start_time_sec = os::elapsedTime(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
278 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
279 |
YoungList* young_list = _g1->young_list(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
280 |
finalize_incremental_building(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
281 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
282 |
guarantee(target_pause_time_ms > 0.0, |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
283 |
"target_pause_time_ms = %1.6lf should be positive", target_pause_time_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
284 |
guarantee(_head == NULL, "Precondition"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
285 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
286 |
size_t pending_cards = _policy->pending_cards(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
287 |
double base_time_ms = _policy->predict_base_elapsed_time_ms(pending_cards); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
288 |
double time_remaining_ms = MAX2(target_pause_time_ms - base_time_ms, 0.0); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
289 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
290 |
log_trace(gc, ergo, cset)("Start choosing CSet. pending cards: " SIZE_FORMAT " predicted base time: %1.2fms remaining time: %1.2fms target pause time: %1.2fms", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
291 |
pending_cards, base_time_ms, time_remaining_ms, target_pause_time_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
292 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
293 |
collector_state()->set_last_gc_was_young(collector_state()->gcs_are_young()); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
294 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
295 |
// The young list is laid with the survivor regions from the previous |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
296 |
// pause are appended to the RHS of the young list, i.e. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
297 |
// [Newly Young Regions ++ Survivors from last pause]. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
298 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
299 |
uint survivor_region_length = young_list->survivor_length(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
300 |
uint eden_region_length = young_list->eden_length(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
301 |
init_region_lengths(eden_region_length, survivor_region_length); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
302 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
303 |
HeapRegion* hr = young_list->first_survivor_region(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
304 |
while (hr != NULL) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
305 |
assert(hr->is_survivor(), "badly formed young list"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
306 |
// There is a convention that all the young regions in the CSet |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
307 |
// are tagged as "eden", so we do this for the survivors here. We |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
308 |
// use the special set_eden_pre_gc() as it doesn't check that the |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
309 |
// region is free (which is not the case here). |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
310 |
hr->set_eden_pre_gc(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
311 |
hr = hr->get_next_young_region(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
312 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
313 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
314 |
// Clear the fields that point to the survivor list - they are all young now. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
315 |
young_list->clear_survivors(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
316 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
317 |
_head = _inc_head; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
318 |
_bytes_used_before = _inc_bytes_used_before; |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
319 |
_bytes_live_before = _inc_bytes_live_before; |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
320 |
time_remaining_ms = MAX2(time_remaining_ms - _inc_predicted_elapsed_time_ms, 0.0); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
321 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
322 |
log_trace(gc, ergo, cset)("Add young regions to CSet. eden: %u regions, survivors: %u regions, predicted young region time: %1.2fms, target pause time: %1.2fms", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
323 |
eden_region_length, survivor_region_length, _inc_predicted_elapsed_time_ms, target_pause_time_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
324 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
325 |
// The number of recorded young regions is the incremental |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
326 |
// collection set's current size |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
327 |
set_recorded_rs_lengths(_inc_recorded_rs_lengths); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
328 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
329 |
double young_end_time_sec = os::elapsedTime(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
330 |
phase_times()->record_young_cset_choice_time_ms((young_end_time_sec - young_start_time_sec) * 1000.0); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
331 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
332 |
return time_remaining_ms; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
333 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
334 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
335 |
void G1CollectionSet::finalize_old_part(double time_remaining_ms) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
336 |
double non_young_start_time_sec = os::elapsedTime(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
337 |
double predicted_old_time_ms = 0.0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
338 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
339 |
if (!collector_state()->gcs_are_young()) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
340 |
cset_chooser()->verify(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
341 |
const uint min_old_cset_length = _policy->calc_min_old_cset_length(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
342 |
const uint max_old_cset_length = _policy->calc_max_old_cset_length(); |
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
343 |
const size_t estimated_available_bytes = _policy->available_bytes_estimate(); |
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
344 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
345 |
uint expensive_region_num = 0; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
346 |
bool check_time_remaining = _policy->adaptive_young_list_length(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
347 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
348 |
HeapRegion* hr = cset_chooser()->peek(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
349 |
while (hr != NULL) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
350 |
if (old_region_length() >= max_old_cset_length) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
351 |
// Added maximum number of old regions to the CSet. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
352 |
log_debug(gc, ergo, cset)("Finish adding old regions to CSet (old CSet region num reached max). old %u regions, max %u regions", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
353 |
old_region_length(), max_old_cset_length); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
354 |
break; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
355 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
356 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
357 |
// Stop adding regions if the remaining reclaimable space is |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
358 |
// not above G1HeapWastePercent. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
359 |
size_t reclaimable_bytes = cset_chooser()->remaining_reclaimable_bytes(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
360 |
double reclaimable_perc = _policy->reclaimable_bytes_perc(reclaimable_bytes); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
361 |
double threshold = (double) G1HeapWastePercent; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
362 |
if (reclaimable_perc <= threshold) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
363 |
// We've added enough old regions that the amount of uncollected |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
364 |
// reclaimable space is at or below the waste threshold. Stop |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
365 |
// adding old regions to the CSet. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
366 |
log_debug(gc, ergo, cset)("Finish adding old regions to CSet (reclaimable percentage not over threshold). " |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
367 |
"old %u regions, max %u regions, reclaimable: " SIZE_FORMAT "B (%1.2f%%) threshold: " UINTX_FORMAT "%%", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
368 |
old_region_length(), max_old_cset_length, reclaimable_bytes, reclaimable_perc, G1HeapWastePercent); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
369 |
break; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
370 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
371 |
|
37170
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
372 |
// Stop adding regions if the live bytes (according to the last marking) |
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
373 |
// added so far would exceed the estimated free bytes. |
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
374 |
if ((_bytes_live_before + hr->live_bytes()) > estimated_available_bytes) { |
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
375 |
log_debug(gc, ergo, cset)("Finish adding old regions to CSet (reached estimated free space limit)"); |
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
376 |
break; |
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
377 |
} |
355117fc6eab
8142935: Adding old gen regions does not consider available free space
tbenson
parents:
37039
diff
changeset
|
378 |
|
37039
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
379 |
double predicted_time_ms = predict_region_elapsed_time_ms(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
380 |
if (check_time_remaining) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
381 |
if (predicted_time_ms > time_remaining_ms) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
382 |
// Too expensive for the current CSet. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
383 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
384 |
if (old_region_length() >= min_old_cset_length) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
385 |
// We have added the minimum number of old regions to the CSet, |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
386 |
// we are done with this CSet. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
387 |
log_debug(gc, ergo, cset)("Finish adding old regions to CSet (predicted time is too high). " |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
388 |
"predicted time: %1.2fms, remaining time: %1.2fms old %u regions, min %u regions", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
389 |
predicted_time_ms, time_remaining_ms, old_region_length(), min_old_cset_length); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
390 |
break; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
391 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
392 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
393 |
// We'll add it anyway given that we haven't reached the |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
394 |
// minimum number of old regions. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
395 |
expensive_region_num += 1; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
396 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
397 |
} else { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
398 |
if (old_region_length() >= min_old_cset_length) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
399 |
// In the non-auto-tuning case, we'll finish adding regions |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
400 |
// to the CSet if we reach the minimum. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
401 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
402 |
log_debug(gc, ergo, cset)("Finish adding old regions to CSet (old CSet region num reached min). old %u regions, min %u regions", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
403 |
old_region_length(), min_old_cset_length); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
404 |
break; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
405 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
406 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
407 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
408 |
// We will add this region to the CSet. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
409 |
time_remaining_ms = MAX2(time_remaining_ms - predicted_time_ms, 0.0); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
410 |
predicted_old_time_ms += predicted_time_ms; |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
411 |
cset_chooser()->pop(); // already have region via peek() |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
412 |
_g1->old_set_remove(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
413 |
add_old_region(hr); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
414 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
415 |
hr = cset_chooser()->peek(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
416 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
417 |
if (hr == NULL) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
418 |
log_debug(gc, ergo, cset)("Finish adding old regions to CSet (candidate old regions not available)"); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
419 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
420 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
421 |
if (expensive_region_num > 0) { |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
422 |
// We print the information once here at the end, predicated on |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
423 |
// whether we added any apparently expensive regions or not, to |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
424 |
// avoid generating output per region. |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
425 |
log_debug(gc, ergo, cset)("Added expensive regions to CSet (old CSet region num not reached min)." |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
426 |
"old: %u regions, expensive: %u regions, min: %u regions, remaining time: %1.2fms", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
427 |
old_region_length(), expensive_region_num, min_old_cset_length, time_remaining_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
428 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
429 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
430 |
cset_chooser()->verify(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
431 |
} |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
432 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
433 |
stop_incremental_building(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
434 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
435 |
log_debug(gc, ergo, cset)("Finish choosing CSet. old: %u regions, predicted old region time: %1.2fms, time remaining: %1.2f", |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
436 |
old_region_length(), predicted_old_time_ms, time_remaining_ms); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
437 |
|
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
438 |
double non_young_end_time_sec = os::elapsedTime(); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
439 |
phase_times()->record_non_young_cset_choice_time_ms((non_young_end_time_sec - non_young_start_time_sec) * 1000.0); |
79f62b89a7a6
8151178: Move the collection set out of the G1 collector policy
mgerdin
parents:
diff
changeset
|
440 |
} |