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

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@58054a18d735 (annotated)

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

Fri, 06 Feb 2009 01:38:50 +0300

author: apetrusenko
date: Fri, 06 Feb 2009 01:38:50 +0300
changeset 980: 58054a18d735
parent 777: 37f87013dfd8
child 1112: 96b229c54d1e
permissions: -rw-r--r--

6484959: G1: introduce survivor spaces
6797754: G1: combined bugfix
Summary: Implemented a policy to control G1 survivor space parameters.
Reviewed-by: tonyp, iveresov

 /*
  * Copyright 2001-2007 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  *
  */
 // VM_operations for the G1 collector.
 // VM_GC_Operation:
 //   - VM_CGC_Operation
 //   - VM_G1CollectFull
 //   - VM_G1CollectForAllocation
 //   - VM_G1IncCollectionPause
 //   - VM_G1PopRegionCollectionPause
 class VM_G1CollectFull: public VM_GC_Operation {
  private:
  public:
   VM_G1CollectFull(int gc_count_before,
                    GCCause::Cause gc_cause)
     : VM_GC_Operation(gc_count_before)
   {
     _gc_cause = gc_cause;
   }
   ~VM_G1CollectFull() {}
   virtual VMOp_Type type() const { return VMOp_G1CollectFull; }
   virtual void doit();
   virtual const char* name() const {
     return "full garbage-first collection";
   }
 };
 class VM_G1CollectForAllocation: public VM_GC_Operation {
  private:
   HeapWord*   _res;
   size_t      _size;                       // size of object to be allocated
  public:
   VM_G1CollectForAllocation(size_t size, int gc_count_before)
     : VM_GC_Operation(gc_count_before) {
     _size        = size;
     _res         = NULL;
   }
   ~VM_G1CollectForAllocation()        {}
   virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }
   virtual void doit();
   virtual const char* name() const {
     return "garbage-first collection to satisfy allocation";
   }
   HeapWord* result() { return _res; }
 };
 class VM_G1IncCollectionPause: public VM_GC_Operation {
  public:
   VM_G1IncCollectionPause(int gc_count_before) :
     VM_GC_Operation(gc_count_before) {}
   virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }
   virtual void doit();
   virtual const char* name() const {
     return "garbage-first incremental collection pause";
   }
 };
 class VM_G1PopRegionCollectionPause: public VM_GC_Operation {
   HeapRegion* _pop_region;
  public:
   VM_G1PopRegionCollectionPause(int gc_count_before, HeapRegion* pop_region) :
     VM_GC_Operation(gc_count_before),
     _pop_region(pop_region)
   {}
   virtual VMOp_Type type() const { return VMOp_G1PopRegionCollectionPause; }
   virtual void doit();
   virtual const char* name() const {
     return "garbage-first popular region collection pause";
   }
 };
 // Concurrent GC stop-the-world operations such as initial and final mark;
 // consider sharing these with CMS's counterparts.
 class VM_CGC_Operation: public VM_Operation {
   VoidClosure* _cl;
   const char* _printGCMessage;
  public:
   VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg) :
     _cl(cl),
     _printGCMessage(printGCMsg)
     {}
   ~VM_CGC_Operation() {}
   virtual VMOp_Type type() const { return VMOp_CGC_Operation; }
   virtual void doit();
   virtual bool doit_prologue();
   virtual void doit_epilogue();
   virtual const char* name() const {
     return "concurrent gc";
   }
 };

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@58054a18d735 (annotated)

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