Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp @ 3771:842b840e67db
7046558: G1: concurrent marking optimizations
Summary: Some optimizations to improve the concurrent marking phase: specialize the main oop closure, make sure a few methods in the fast path are properly inlined, a few more bits and pieces, and some cosmetic fixes.
Reviewed-by: stefank, johnc
| author | tonyp |
|---|---|
| date | Tue, 14 Jun 2011 10:33:43 -0400 |
| parents | ae5b2f1dcf12 |
| children | 4406629aa157 |
| rev | line source |
|---|---|
| 342 | 1 /* |
|
3765
ae5b2f1dcf12
7045662: G1: OopsInHeapRegionClosure::set_region() should not be virtual
tonyp
parents:
1972
diff
changeset
|
2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. |
| 342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1261
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1261
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:
1261
diff
changeset
|
21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_INLINE_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_INLINE_HPP | |
| 27 | |
| 3771 | 28 #include "gc_implementation/g1/concurrentMark.inline.hpp" |
| 1972 | 29 #include "gc_implementation/g1/g1CollectedHeap.hpp" |
| 30 #include "gc_implementation/g1/g1OopClosures.hpp" | |
| 31 #include "gc_implementation/g1/g1RemSet.hpp" | |
| 32 | |
| 342 | 33 /* |
| 34 * This really ought to be an inline function, but apparently the C++ | |
| 35 * compiler sometimes sees fit to ignore inline declarations. Sigh. | |
| 36 */ | |
| 37 | |
| 38 // This must a ifdef'ed because the counting it controls is in a | |
| 39 // perf-critical inner loop. | |
| 40 #define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0 | |
| 41 | |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
42 template <class T> inline void FilterIntoCSClosure::do_oop_nv(T* p) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
43 T heap_oop = oopDesc::load_heap_oop(p); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
44 if (!oopDesc::is_null(heap_oop) && |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
45 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop))) { |
| 342 | 46 _oc->do_oop(p); |
| 47 #if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT | |
| 1705 | 48 if (_dcto_cl != NULL) |
| 49 _dcto_cl->incr_count(); | |
| 342 | 50 #endif |
| 51 } | |
| 52 } | |
| 53 | |
| 54 #define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0 | |
| 55 | |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
56 template <class T> inline void FilterOutOfRegionClosure::do_oop_nv(T* p) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
57 T heap_oop = oopDesc::load_heap_oop(p); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
58 if (!oopDesc::is_null(heap_oop)) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
59 HeapWord* obj_hw = (HeapWord*)oopDesc::decode_heap_oop_not_null(heap_oop); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
60 if (obj_hw < _r_bottom || obj_hw >= _r_end) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
61 _oc->do_oop(p); |
| 342 | 62 #if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
63 _out_of_region++; |
| 342 | 64 #endif |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
65 } |
| 342 | 66 } |
| 67 } | |
| 68 | |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
69 // This closure is applied to the fields of the objects that have just been copied. |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
70 template <class T> inline void G1ParScanClosure::do_oop_nv(T* p) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
71 T heap_oop = oopDesc::load_heap_oop(p); |
| 342 | 72 |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
73 if (!oopDesc::is_null(heap_oop)) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
74 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
75 if (_g1->in_cset_fast_test(obj)) { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
76 // We're not going to even bother checking whether the object is |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
77 // already forwarded or not, as this usually causes an immediate |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
78 // stall. We'll try to prefetch the object (for write, given that |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
79 // we might need to install the forwarding reference) and we'll |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
80 // get back to it when pop it from the queue |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
81 Prefetch::write(obj->mark_addr(), 0); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
82 Prefetch::read(obj->mark_addr(), (HeapWordSize*2)); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
83 |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
84 // slightly paranoid test; I'm trying to catch potential |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
85 // problems before we go into push_on_queue to know where the |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
86 // problem is coming from |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
87 assert(obj == oopDesc::load_decode_heap_oop(p), |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
88 "p should still be pointing to obj"); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
89 _par_scan_state->push_on_queue(p); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
90 } else { |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
91 _par_scan_state->update_rs(_from, p, _par_scan_state->queue_num()); |
|
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
92 } |
| 342 | 93 } |
| 94 } | |
| 1261 | 95 |
| 96 template <class T> inline void G1ParPushHeapRSClosure::do_oop_nv(T* p) { | |
| 97 T heap_oop = oopDesc::load_heap_oop(p); | |
| 98 | |
| 99 if (!oopDesc::is_null(heap_oop)) { | |
| 100 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); | |
| 101 if (_g1->in_cset_fast_test(obj)) { | |
| 102 Prefetch::write(obj->mark_addr(), 0); | |
| 103 Prefetch::read(obj->mark_addr(), (HeapWordSize*2)); | |
| 1705 | 104 |
| 105 // Place on the references queue | |
| 1261 | 106 _par_scan_state->push_on_queue(p); |
| 107 } | |
| 108 } | |
| 109 } | |
| 1705 | 110 |
| 3771 | 111 template <class T> inline void G1CMOopClosure::do_oop_nv(T* p) { |
| 112 assert(_g1h->is_in_g1_reserved((HeapWord*) p), "invariant"); | |
| 113 assert(!_g1h->is_on_master_free_list( | |
| 114 _g1h->heap_region_containing((HeapWord*) p)), "invariant"); | |
| 115 | |
| 116 oop obj = oopDesc::load_decode_heap_oop(p); | |
| 117 if (_cm->verbose_high()) { | |
| 118 gclog_or_tty->print_cr("[%d] we're looking at location " | |
| 119 "*"PTR_FORMAT" = "PTR_FORMAT, | |
| 120 _task->task_id(), p, (void*) obj); | |
| 121 } | |
| 122 _task->deal_with_reference(obj); | |
| 123 } | |
| 1972 | 124 |
| 125 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_INLINE_HPP |