7046182: G1: remove unnecessary iterations over the collection set
Summary: Remove two unnecessary iterations over the collection set which are supposed to prepare the RSet's of the CSet regions for parallel iterations (we'll make sure this is done incrementally). I'll piggyback on this CR the removal of the G1_REM_SET_LOGGING code.
Reviewed-by: brutisso, johnc
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#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSETS_HPP
#define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSETS_HPP
#include "gc_implementation/g1/heapRegionSet.inline.hpp"
//////////////////// FreeRegionList ////////////////////
class FreeRegionList : public HeapRegionLinkedList {
protected:
virtual const char* verify_region_extra(HeapRegion* hr);
virtual bool regions_humongous() { return false; }
virtual bool regions_empty() { return true; }
public:
FreeRegionList(const char* name) : HeapRegionLinkedList(name) { }
};
//////////////////// MasterFreeRegionList ////////////////////
class MasterFreeRegionList : public FreeRegionList {
protected:
virtual const char* verify_region_extra(HeapRegion* hr);
virtual bool check_mt_safety();
public:
MasterFreeRegionList(const char* name) : FreeRegionList(name) { }
};
//////////////////// SecondaryFreeRegionList ////////////////////
class SecondaryFreeRegionList : public FreeRegionList {
protected:
virtual bool check_mt_safety();
public:
SecondaryFreeRegionList(const char* name) : FreeRegionList(name) { }
};
//////////////////// HumongousRegionSet ////////////////////
class HumongousRegionSet : public HeapRegionSet {
protected:
virtual const char* verify_region_extra(HeapRegion* hr);
virtual bool regions_humongous() { return true; }
virtual bool regions_empty() { return false; }
public:
HumongousRegionSet(const char* name) : HeapRegionSet(name) { }
};
//////////////////// MasterHumongousRegionSet ////////////////////
class MasterHumongousRegionSet : public HumongousRegionSet {
protected:
virtual bool check_mt_safety();
public:
MasterHumongousRegionSet(const char* name) : HumongousRegionSet(name) { }
};
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSETS_HPP