Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/parallelScavenge/generationSizer.cpp @ 13060:8f07aa079343

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking 7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector Summary: Major cleanup of the collectorpolicy classes Reviewed-by: tschatzl, jcoomes
author jwilhelm
date Fri, 01 Nov 2013 17:09:38 +0100
parents
children ee527493b36d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
13060
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
1 /*
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
4 *
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
7 * published by the Free Software Foundation.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
8 *
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
13 * accompanied this code).
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
14 *
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
18 *
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
21 * questions.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
22 *
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
23 */
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
24
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
25 #include "precompiled.hpp"
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
26 #include "gc_implementation/parallelScavenge/generationSizer.hpp"
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
27 #include "memory/collectorPolicy.hpp"
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
28
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
29 void GenerationSizer::trace_gen_sizes(const char* const str) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
30 if (TracePageSizes) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
31 tty->print_cr("%s: " SIZE_FORMAT "," SIZE_FORMAT " "
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
32 SIZE_FORMAT "," SIZE_FORMAT " "
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
33 SIZE_FORMAT,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
34 str,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
35 _min_gen1_size / K, _max_gen1_size / K,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
36 _min_gen0_size / K, _max_gen0_size / K,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
37 _max_heap_byte_size / K);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
38 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
39 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
40
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
41 void GenerationSizer::initialize_alignments() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
42 _space_alignment = _gen_alignment = default_gen_alignment();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
43 _heap_alignment = compute_heap_alignment();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
44 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
45
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
46 void GenerationSizer::initialize_flags() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
47 // Do basic sizing work
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
48 TwoGenerationCollectorPolicy::initialize_flags();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
49
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
50 assert(UseSerialGC ||
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
51 !FLAG_IS_DEFAULT(ParallelGCThreads) ||
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
52 (ParallelGCThreads > 0),
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
53 "ParallelGCThreads should be set before flag initialization");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
54
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
55 // The survivor ratio's are calculated "raw", unlike the
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
56 // default gc, which adds 2 to the ratio value. We need to
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
57 // make sure the values are valid before using them.
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
58 if (MinSurvivorRatio < 3) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
59 FLAG_SET_ERGO(uintx, MinSurvivorRatio, 3);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
60 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
61
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
62 if (InitialSurvivorRatio < 3) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
63 FLAG_SET_ERGO(uintx, InitialSurvivorRatio, 3);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
64 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
65 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
66
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
67 void GenerationSizer::initialize_size_info() {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
68 trace_gen_sizes("ps heap raw");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
69 const size_t page_sz = os::page_size_for_region(_min_heap_byte_size,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
70 _max_heap_byte_size,
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
71 8);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
72
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
73 // Can a page size be something else than a power of two?
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
74 assert(is_power_of_2((intptr_t)page_sz), "must be a power of 2");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
75 size_t new_alignment = round_to(page_sz, _gen_alignment);
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
76 if (new_alignment != _gen_alignment) {
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
77 _gen_alignment = new_alignment;
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
78 // Redo everything from the start
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
79 initialize_flags();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
80 }
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
81 TwoGenerationCollectorPolicy::initialize_size_info();
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
82
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
83 trace_gen_sizes("ps heap rnd");
8f07aa079343 8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
diff changeset
84 }