truffle: src/share/vm/gc_implementation/g1/collectionSetChooser.hpp annotate

annotate src/share/vm/gc_implementation/g1/collectionSetChooser.hpp @ 6862:8a5ea0a9ccc4

7127708: G1: change task num types from int to uint in concurrent mark Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich. Reviewed-by: johnc Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>

author	johnc
date	Sat, 06 Oct 2012 01:17:44 -0700
parents	a2f7274eb6ef
children	27714220e50e

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	4 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	7 * published by the Free Software Foundation.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	8 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	13 * accompanied this code).
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	14 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 579 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 579 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 579 diff changeset	21 * questions.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	22 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	23 */
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_COLLECTIONSETCHOOSER_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_G1_COLLECTIONSETCHOOSER_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "gc_implementation/g1/heapRegion.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "utilities/growableArray.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 6011 diff changeset	31 class CollectionSetChooser: public CHeapObj<mtGC> {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	32
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	33 GrowableArray<HeapRegion*> _regions;
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	34
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	35 // Unfortunately, GrowableArray uses ints for length and indexes. To
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	36 // avoid excessive casting in the rest of the class the following
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	37 // wrapper methods are provided that use uints.
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	38
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	39 uint regions_length() { return (uint) _regions.length(); }
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	40 HeapRegion* regions_at(uint i) { return _regions.at((int) i); }
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	41 void regions_at_put(uint i, HeapRegion* hr) {
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	42 _regions.at_put((int) i, hr);
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	43 }
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	44 void regions_at_put_grow(uint i, HeapRegion* hr) {
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	45 _regions.at_put_grow((int) i, hr);
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	46 }
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	47 void regions_trunc_to(uint i) { _regions.trunc_to((uint) i); }
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	48
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	49 // The index of the next candidate old region to be considered for
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	50 // addition to the CSet.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	51 uint _curr_index;
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	52
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	53 // The number of candidate old regions added to the CSet chooser.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	54 uint _length;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	55
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	56 // Keeps track of the start of the next array chunk to be claimed by
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	57 // parallel GC workers.
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	58 uint _first_par_unreserved_idx;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	60 // If a region has more live bytes than this threshold, it will not
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	61 // be added to the CSet chooser and will not be a candidate for
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	62 // collection.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	63 size_t _region_live_threshold_bytes;
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	64
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	65 // The sum of reclaimable bytes over all the regions in the CSet chooser.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	66 size_t _remaining_reclaimable_bytes;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	67
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	68 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	69
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	70 // Return the current candidate region to be considered for
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	71 // collection without removing it from the CSet chooser.
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	72 HeapRegion* peek() {
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	73 HeapRegion* res = NULL;
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	74 if (_curr_index < _length) {
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	75 res = regions_at(_curr_index);
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	76 assert(res != NULL,
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	77 err_msg("Unexpected NULL hr in _regions at index %u",
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	78 _curr_index));
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	79 }
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	80 return res;
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	81 }
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	82
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	83 // Remove the given region from the CSet chooser and move to the
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	84 // next one. The given region should be the current candidate region
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	85 // in the CSet chooser.
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	86 void remove_and_move_to_next(HeapRegion* hr) {
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	87 assert(hr != NULL, "pre-condition");
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	88 assert(_curr_index < _length, "pre-condition");
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	89 assert(regions_at(_curr_index) == hr, "pre-condition");
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	90 regions_at_put(_curr_index, NULL);
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	91 assert(hr->reclaimable_bytes() <= _remaining_reclaimable_bytes,
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	92 err_msg("remaining reclaimable bytes inconsistent "
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	93 "from region: "SIZE_FORMAT" remaining: "SIZE_FORMAT,
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	94 hr->reclaimable_bytes(), _remaining_reclaimable_bytes));
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	95 _remaining_reclaimable_bytes -= hr->reclaimable_bytes();
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	96 _curr_index += 1;
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	97 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	98
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	99 CollectionSetChooser();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	100
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	101 void sort_regions();
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	102
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	103 // Determine whether to add the given region to the CSet chooser or
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	104 // not. Currently, we skip humongous regions (we never add them to
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	105 // the CSet, we only reclaim them during cleanup) and regions whose
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	106 // live bytes are over the threshold.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	107 bool should_add(HeapRegion* hr) {
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	108 assert(hr->is_marked(), "pre-condition");
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	109 assert(!hr->is_young(), "should never consider young regions");
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	110 return !hr->isHumongous() &&
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	111 hr->live_bytes() < _region_live_threshold_bytes;
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	112 }
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	113
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	114 // Calculate the minimum number of old regions we'll add to the CSet
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	115 // during a mixed GC.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	116 uint calc_min_old_cset_length();
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	117
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	118 // Calculate the maximum number of old regions we'll add to the CSet
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	119 // during a mixed GC.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	120 uint calc_max_old_cset_length();
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	121
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	122 // Serial version.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	123 void add_region(HeapRegion *hr);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	124
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	125 // Must be called before calls to claim_array_chunk().
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	126 // n_regions is the number of regions, chunk_size the chunk size.
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	127 void prepare_for_par_region_addition(uint n_regions, uint chunk_size);
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	128 // Returns the first index in a contiguous chunk of chunk_size indexes
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	129 // that the calling thread has reserved. These must be set by the
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	130 // calling thread using set_region() (to NULL if necessary).
f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	131 uint claim_array_chunk(uint chunk_size);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	132 // Set the marked array entry at index to hr. Careful to claim the index
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	133 // first if in parallel.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	134 void set_region(uint index, HeapRegion* hr);
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	135 // Atomically increment the number of added regions by region_num
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	136 // and the amount of reclaimable bytes by reclaimable_bytes.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	137 void update_totals(uint region_num, size_t reclaimable_bytes);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	138
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	139 void clear();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	140
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	141 // Return the number of candidate regions that remain to be collected.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	142 uint remaining_regions() { return _length - _curr_index; }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	143
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	144 // Determine whether the CSet chooser has more candidate regions or not.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	145 bool is_empty() { return remaining_regions() == 0; }
4912 a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	146
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	147 // Return the reclaimable bytes that remain to be collected on
a9647476d1a4 7132029: G1: mixed GC phase lasts for longer than it should tonyp parents: 3989 diff changeset	148 // all the candidate regions in the CSet chooser.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	149 size_t remaining_reclaimable_bytes() { return _remaining_reclaimable_bytes; }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	150
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	151 // Returns true if the used portion of "_regions" is properly
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	152 // sorted, otherwise asserts false.
6011 f7a8920427a6 7145441: G1: collection set chooser-related cleanup tonyp parents: 6010 diff changeset	153 void verify() PRODUCT_RETURN;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	154 };
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	155
6254 a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	156 class CSetChooserParUpdater : public StackObj {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	157 private:
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	158 CollectionSetChooser* _chooser;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	159 bool _parallel;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	160 uint _chunk_size;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	161 uint _cur_chunk_idx;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	162 uint _cur_chunk_end;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	163 uint _regions_added;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	164 size_t _reclaimable_bytes_added;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	165
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	166 public:
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	167 CSetChooserParUpdater(CollectionSetChooser* chooser,
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	168 bool parallel, uint chunk_size) :
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	169 _chooser(chooser), _parallel(parallel), _chunk_size(chunk_size),
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	170 _cur_chunk_idx(0), _cur_chunk_end(0),
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	171 _regions_added(0), _reclaimable_bytes_added(0) { }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	172
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	173 ~CSetChooserParUpdater() {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	174 if (_parallel && _regions_added > 0) {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	175 _chooser->update_totals(_regions_added, _reclaimable_bytes_added);
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	176 }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	177 }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	178
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	179 void add_region(HeapRegion* hr) {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	180 if (_parallel) {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	181 if (_cur_chunk_idx == _cur_chunk_end) {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	182 _cur_chunk_idx = _chooser->claim_array_chunk(_chunk_size);
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	183 _cur_chunk_end = _cur_chunk_idx + _chunk_size;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	184 }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	185 assert(_cur_chunk_idx < _cur_chunk_end, "invariant");
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	186 _chooser->set_region(_cur_chunk_idx, hr);
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	187 _cur_chunk_idx += 1;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	188 } else {
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	189 _chooser->add_region(hr);
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	190 }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	191 _regions_added += 1;
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	192 _reclaimable_bytes_added += hr->reclaimable_bytes();
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	193 }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	194
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	195 bool should_add(HeapRegion* hr) { return _chooser->should_add(hr); }
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	196 };
a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	197
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	198 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_COLLECTIONSETCHOOSER_HPP
6254 a2f7274eb6ef 7114678: G1: various small fixes, code cleanup, and refactoring tonyp parents: 6197 diff changeset	199

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/collectionSetChooser.hpp @ 6862:8a5ea0a9ccc4