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

annotate src/share/vm/gc_implementation/g1/bufferingOopClosure.hpp @ 12233:40136aa2cdb1

8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes

author	tschatzl
date	Wed, 11 Sep 2013 16:25:02 +0200
parents	f95d63e2154a
children	c685ef164975

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	2 * Copyright (c) 2001, 2010, 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: 845 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 845 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: 845 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_BUFFERINGOOPCLOSURE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_G1_BUFFERINGOOPCLOSURE_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 "memory/genOopClosures.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "memory/generation.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30 #include "runtime/os.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	31 #include "utilities/taskqueue.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	32
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	33 // A BufferingOops closure tries to separate out the cost of finding roots
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	34 // from the cost of applying closures to them. It maintains an array of
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	35 // ref-containing locations. Until the array is full, applying the closure
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	36 // to an oop* merely records that location in the array. Since this
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	37 // closure app cost is small, an elapsed timer can approximately attribute
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	38 // all of this cost to the cost of finding the roots. When the array fills
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	39 // up, the wrapped closure is applied to all elements, keeping track of
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	40 // this elapsed time of this process, and leaving the array empty.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	41 // The caller must be sure to call "done" to process any unprocessed
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	42 // buffered entriess.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	43
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	44 class Generation;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	45 class HeapRegion;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	46
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	47 class BufferingOopClosure: public OopClosure {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	48 protected:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	49 enum PrivateConstants {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	50 BufferLength = 1024
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	51 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	52
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	53 StarTask _buffer[BufferLength];
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	54 StarTask* _buffer_top;
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	55 StarTask* _buffer_curr;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	56
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	57 OopClosure* _oc;
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	58 double _closure_app_seconds;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	60 void process_buffer () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	61 double start = os::elapsedTime();
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	62 for (StarTask* curr = _buffer; curr < _buffer_curr; ++curr) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	63 if (curr->is_narrow()) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	64 assert(UseCompressedOops, "Error");
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	65 _oc->do_oop((narrowOop)(curr));
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	66 } else {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	67 _oc->do_oop((oop)(curr));
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	68 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	69 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	70 _buffer_curr = _buffer;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	71 _closure_app_seconds += (os::elapsedTime() - start);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	72 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	73
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	74 template <class T> inline void do_oop_work(T* p) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	75 if (_buffer_curr == _buffer_top) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	76 process_buffer();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	77 }
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	78 StarTask new_ref(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	79 *_buffer_curr = new_ref;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	80 ++_buffer_curr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	81 }
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	82
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	83 public:
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	84 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	85 virtual void do_oop(oop* p) { do_oop_work(p); }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	86
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	87 void done () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	88 if (_buffer_curr > _buffer) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	89 process_buffer();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	90 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	91 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	92 double closure_app_seconds () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	93 return _closure_app_seconds;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	94 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	95 BufferingOopClosure (OopClosure *oc) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	96 _oc(oc),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	97 _buffer_curr(_buffer), _buffer_top(_buffer + BufferLength),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	98 _closure_app_seconds(0.0) { }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	99 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	100
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	101 class BufferingOopsInGenClosure: public OopsInGenClosure {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	102 BufferingOopClosure _boc;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	103 OopsInGenClosure* _oc;
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	104 protected:
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	105 template <class T> inline void do_oop_work(T* p) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	106 assert(generation()->is_in_reserved((void*)p), "Must be in!");
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	107 _boc.do_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	108 }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	109 public:
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	110 BufferingOopsInGenClosure(OopsInGenClosure *oc) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	111 _boc(oc), _oc(oc) {}
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	112
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	113 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	114 virtual void do_oop(oop* p) { do_oop_work(p); }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	115
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	116 void done() {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	117 _boc.done();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	118 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	119
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	120 double closure_app_seconds () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	121 return _boc.closure_app_seconds();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	122 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	123
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	124 void set_generation(Generation* gen) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	125 OopsInGenClosure::set_generation(gen);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	126 _oc->set_generation(gen);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	127 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	128
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	129 void reset_generation() {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	130 // Make sure we finish the current work with the current generation.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	131 _boc.done();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	132 OopsInGenClosure::reset_generation();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	133 _oc->reset_generation();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	134 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	135
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	136 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	137
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	138
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	139 class BufferingOopsInHeapRegionClosure: public OopsInHeapRegionClosure {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	140 private:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	141 enum PrivateConstants {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	142 BufferLength = 1024
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	143 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	144
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	145 StarTask _buffer[BufferLength];
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	146 StarTask* _buffer_top;
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	147 StarTask* _buffer_curr;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	148
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	149 HeapRegion* _hr_buffer[BufferLength];
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	150 HeapRegion** _hr_curr;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	151
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	152 OopsInHeapRegionClosure* _oc;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	153 double _closure_app_seconds;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	154
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	155 void process_buffer () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	156
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	157 assert((_hr_curr - _hr_buffer) == (_buffer_curr - _buffer),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	158 "the two lengths should be the same");
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	159
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	160 double start = os::elapsedTime();
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	161 HeapRegion** hr_curr = _hr_buffer;
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	162 HeapRegion* hr_prev = NULL;
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	163 for (StarTask* curr = _buffer; curr < _buffer_curr; ++curr) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	164 HeapRegion* region = *hr_curr;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	165 if (region != hr_prev) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	166 _oc->set_region(region);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	167 hr_prev = region;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	168 }
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	169 if (curr->is_narrow()) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	170 assert(UseCompressedOops, "Error");
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	171 _oc->do_oop((narrowOop)(curr));
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	172 } else {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	173 _oc->do_oop((oop)(curr));
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	174 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	175 ++hr_curr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	176 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	177 _buffer_curr = _buffer;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	178 _hr_curr = _hr_buffer;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	179 _closure_app_seconds += (os::elapsedTime() - start);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	180 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	181
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	182 public:
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	183 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	184 virtual void do_oop( oop* p) { do_oop_work(p); }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	185
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	186 template <class T> void do_oop_work(T* p) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	187 if (_buffer_curr == _buffer_top) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	188 assert(_hr_curr > _hr_buffer, "_hr_curr should be consistent with _buffer_curr");
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	189 process_buffer();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	190 }
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	191 StarTask new_ref(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	192 *_buffer_curr = new_ref;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	193 ++_buffer_curr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	194 *_hr_curr = _from;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	195 ++_hr_curr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	196 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	197 void done () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	198 if (_buffer_curr > _buffer) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	199 assert(_hr_curr > _hr_buffer, "_hr_curr should be consistent with _buffer_curr");
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	200 process_buffer();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	201 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	202 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	203 double closure_app_seconds () {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	204 return _closure_app_seconds;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	205 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	206 BufferingOopsInHeapRegionClosure (OopsInHeapRegionClosure *oc) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	207 _oc(oc),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	208 _buffer_curr(_buffer), _buffer_top(_buffer + BufferLength),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	209 _hr_curr(_hr_buffer),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	210 _closure_app_seconds(0.0) { }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	211 };
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	212
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	213 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_BUFFERINGOOPCLOSURE_HPP

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/bufferingOopClosure.hpp @ 12233:40136aa2cdb1