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6711316: Open source the Garbage-First garbage collector

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First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
This commit is contained in:
Y. Srinivas Ramakrishna 2008-06-05 15:57:56 -07:00
parent 39463bb3fc
commit 18f3386a98
215 changed files with 36088 additions and 1249 deletions
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16
hotspot/src/share/vm/memory/collectorPolicy.hpp
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@ -39,10 +39,12 @@
// Forward declarations.
class GenCollectorPolicy;
class TwoGenerationCollectorPolicy;
class AdaptiveSizePolicy;
#ifndef SERIALGC
class ConcurrentMarkSweepPolicy;
class G1CollectorPolicy;
#endif // SERIALGC
class AdaptiveSizePolicy;
class GCPolicyCounters;
class PermanentGenerationSpec;
class MarkSweepPolicy;
@ -55,7 +57,7 @@ class CollectorPolicy : public CHeapObj {
// Requires that the concrete subclass sets the alignment constraints
// before calling.
virtual void initialize_flags();
virtual void initialize_size_info() = 0;
virtual void initialize_size_info();
// Initialize "_permanent_generation" to a spec for the given kind of
// Perm Gen.
void initialize_perm_generation(PermGen::Name pgnm);
@ -91,17 +93,18 @@ class CollectorPolicy : public CHeapObj {
enum Name {
CollectorPolicyKind,
TwoGenerationCollectorPolicyKind,
TrainPolicyKind,
ConcurrentMarkSweepPolicyKind,
ASConcurrentMarkSweepPolicyKind
ASConcurrentMarkSweepPolicyKind,
G1CollectorPolicyKind
};
// Identification methods.
virtual GenCollectorPolicy* as_generation_policy() { return NULL; }
virtual GenCollectorPolicy* as_generation_policy() { return NULL; }
virtual TwoGenerationCollectorPolicy* as_two_generation_policy() { return NULL; }
virtual MarkSweepPolicy* as_mark_sweep_policy() { return NULL; }
#ifndef SERIALGC
virtual ConcurrentMarkSweepPolicy* as_concurrent_mark_sweep_policy() { return NULL; }
virtual G1CollectorPolicy* as_g1_policy() { return NULL; }
#endif // SERIALGC
// Note that these are not virtual.
bool is_generation_policy() { return as_generation_policy() != NULL; }
@ -109,10 +112,13 @@ class CollectorPolicy : public CHeapObj {
bool is_mark_sweep_policy() { return as_mark_sweep_policy() != NULL; }
#ifndef SERIALGC
bool is_concurrent_mark_sweep_policy() { return as_concurrent_mark_sweep_policy() != NULL; }
bool is_g1_policy() { return as_g1_policy() != NULL; }
#else // SERIALGC
bool is_concurrent_mark_sweep_policy() { return false; }
bool is_g1_policy() { return false; }
#endif // SERIALGC
virtual PermanentGenerationSpec *permanent_generation() {
assert(_permanent_generation != NULL, "Sanity check");
return _permanent_generation;