jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp@29e7d79232b9

6819065: G1: eliminate high serial card table clearing time
Reviewed-by: iveresov, tonyp

     1 /*

     2  * Copyright 2001-2007 Sun Microsystems, Inc.  All Rights Reserved.

     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  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 /*

    26  * This really ought to be an inline function, but apparently the C++

    27  * compiler sometimes sees fit to ignore inline declarations.  Sigh.

    28  */

    30 // This must a ifdef'ed because the counting it controls is in a

    31 // perf-critical inner loop.

    32 #define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0

    34 inline void FilterIntoCSClosure::do_oop_nv(oop* p) {

    35   oop obj = *p;

    36   if (obj != NULL && _g1->obj_in_cs(obj)) {

    37     _oc->do_oop(p);

    38 #if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT

    39     _dcto_cl->incr_count();

    40 #endif

    41   }

    42 }

    44 inline void FilterIntoCSClosure::do_oop(oop* p)

    45 {

    46   do_oop_nv(p);

    47 }

    49 #define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0

    51 inline void FilterOutOfRegionClosure::do_oop_nv(oop* p) {

    52   oop obj = *p;

    53   HeapWord* obj_hw = (HeapWord*)obj;

    54   if (obj_hw != NULL && (obj_hw < _r_bottom || obj_hw >= _r_end)) {

    55     _oc->do_oop(p);

    56 #if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT

    57     _out_of_region++;

    58 #endif

    59   }

    60 }

    62 inline void FilterOutOfRegionClosure::do_oop(oop* p)

    63 {

    64   do_oop_nv(p);

    65 }

    67 inline void FilterInHeapRegionAndIntoCSClosure::do_oop_nv(oop* p) {

    68   oop obj = *p;

    69   if (obj != NULL && _g1->obj_in_cs(obj))

    70     _oc->do_oop(p);

    71 }

    73 inline void FilterInHeapRegionAndIntoCSClosure::do_oop(oop* p)

    74 {

    75   do_oop_nv(p);

    76 }

    79 inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop_nv(oop* p) {

    80   oop obj = *p;

    81   if (obj != NULL) {

    82     HeapRegion* hr = _g1->heap_region_containing((HeapWord*) obj);

    83     if (hr != NULL) {

    84       if (hr->in_collection_set())

    85         _oc->do_oop(p);

    86       else if (!hr->is_young())

    87         _cm->grayRoot(obj);

    88     }

    89   }

    90 }

    92 inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop(oop* p)

    93 {

    94   do_oop_nv(p);

    95 }

    97 inline void G1ScanAndBalanceClosure::do_oop_nv(oop* p) {

    98   RefToScanQueue* q;

    99   if (ParallelGCThreads > 0) {

   100     // Deal the work out equally.

   101     _nq = (_nq + 1) % ParallelGCThreads;

   102     q = _g1->task_queue(_nq);

   103   } else {

   104     q = _g1->task_queue(0);

   105   }

   106   bool nooverflow = q->push(p);

   107   guarantee(nooverflow, "Overflow during poplularity region processing");

   108 }

   110 inline void G1ScanAndBalanceClosure::do_oop(oop* p) {

   111   do_oop_nv(p);

   112 }

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