jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/vm_operations

7035144: G1: nightly failure: Non-dirty cards in region that should be dirty (failures still exist...)
Summary: We should only undirty cards after we decide that they are not on a young region, not before. The fix also includes improvements to the verify_dirty_region() method which print out which cards were not found dirty.
Reviewed-by: johnc, brutisso

     1 /*

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     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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    23  */

    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP

    28 #include "gc_implementation/shared/vmGCOperations.hpp"

    30 // VM_operations for the G1 collector.

    31 // VM_GC_Operation:

    32 //   - VM_CGC_Operation

    33 //   - VM_G1CollectFull

    34 //   - VM_G1OperationWithAllocRequest

    35 //     - VM_G1CollectForAllocation

    36 //     - VM_G1IncCollectionPause

    38 class VM_G1OperationWithAllocRequest: public VM_GC_Operation {

    39 protected:

    40   size_t    _word_size;

    41   HeapWord* _result;

    42   bool      _pause_succeeded;

    44 public:

    45   VM_G1OperationWithAllocRequest(unsigned int gc_count_before,

    46                                  size_t       word_size)

    47     : VM_GC_Operation(gc_count_before, GCCause::_allocation_failure),

    48       _word_size(word_size), _result(NULL), _pause_succeeded(false) { }

    49   HeapWord* result() { return _result; }

    50   bool pause_succeeded() { return _pause_succeeded; }

    51 };

    53 class VM_G1CollectFull: public VM_GC_Operation {

    54 public:

    55   VM_G1CollectFull(unsigned int gc_count_before,

    56                    unsigned int full_gc_count_before,

    57                    GCCause::Cause cause)

    58     : VM_GC_Operation(gc_count_before, cause, full_gc_count_before) { }

    59   virtual VMOp_Type type() const { return VMOp_G1CollectFull; }

    60   virtual void doit();

    61   virtual const char* name() const {

    62     return "full garbage-first collection";

    63   }

    64 };

    66 class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest {

    67 public:

    68   VM_G1CollectForAllocation(unsigned int gc_count_before,

    69                             size_t       word_size);

    70   virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }

    71   virtual void doit();

    72   virtual const char* name() const {

    73     return "garbage-first collection to satisfy allocation";

    74   }

    75 };

    77 class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest {

    78 private:

    79   bool         _should_initiate_conc_mark;

    80   double       _target_pause_time_ms;

    81   unsigned int _full_collections_completed_before;

    82 public:

    83   VM_G1IncCollectionPause(unsigned int   gc_count_before,

    84                           size_t         word_size,

    85                           bool           should_initiate_conc_mark,

    86                           double         target_pause_time_ms,

    87                           GCCause::Cause gc_cause);

    88   virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }

    89   virtual void doit();

    90   virtual void doit_epilogue();

    91   virtual const char* name() const {

    92     return "garbage-first incremental collection pause";

    93   }

    94 };

    96 // Concurrent GC stop-the-world operations such as initial and final mark;

    97 // consider sharing these with CMS's counterparts.

    98 class VM_CGC_Operation: public VM_Operation {

    99   VoidClosure* _cl;

   100   const char* _printGCMessage;

   101 public:

   102   VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg)

   103     : _cl(cl), _printGCMessage(printGCMsg) { }

   104   virtual VMOp_Type type() const { return VMOp_CGC_Operation; }

   105   virtual void doit();

   106   virtual bool doit_prologue();

   107   virtual void doit_epilogue();

   108   virtual const char* name() const {

   109     return "concurrent gc";

   110   }

   111 };

   113 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@063382f9b575

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@063382f9b575

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp