cds::memory::michael::summary_stat Struct Reference

Summary processor heap statistics. More...

#include <cds/memory/michael/allocator.h>

Public Member Functions
	summary_stat ()
	Constructs empty statistics. All counters are zero.
summary_stat &	operator-= (const summary_stat &stat)
	Difference statistics.
void	clear ()
	Clears statistics.

Data Fields
size_t	nAllocFromActive
	Event count of allocation from active superblock.
size_t	nAllocFromPartial
	Event count of allocation from partial superblock.
size_t	nAllocFromNew
	Event count of allocation from new superblock.
size_t	nFreeCount
	Count of free function call.
size_t	nPageAllocCount
	Count of page (superblock) allocated.
size_t	nPageDeallocCount
	Count of page (superblock) deallocated.
size_t	nDescAllocCount
	Count of superblock descriptors.
size_t	nDescFull
	Count of full superblock.
atomic64u_t	nBytesAllocated
	Count of allocated bytes (for heap managed memory blocks)
atomic64u_t	nBytesDeallocated
	Count of deallocated bytes (for heap managed memory blocks)
size_t	nSysAllocCount
	Count of alloc and alloc_aligned function call (for large memory blocks that allocated directly from OS)
size_t	nSysFreeCount
	Count of free and free_aligned function call (for large memory blocks that allocated directly from OS)
atomic64u_t	nSysBytesAllocated
	Count of allocated bytes (for large memory blocks that allocated directly from OS)
atomic64_t	nSysBytesDeallocated
	Count of deallocated bytes (for large memory blocks that allocated directly from OS)
size_t	nActiveDescCASFailureCount
	CAS failure counter for updating active field of active block of alloc_from_active Heap internal function.
size_t	nActiveAnchorCASFailureCount
	CAS failure counter for updating active field of active block of alloc_from_active Heap internal function.
size_t	nPartialDescCASFailureCount
	CAS failure counter for updating anchor field of partial block of alloc_from_partial Heap internal function.
size_t	nPartialAnchorCASFailureCount
	CAS failure counter for updating anchor field of partial block of alloc_from_partial Heap internal function.

Detailed Description

Summary processor heap statistics.

Summary heap statistics for use with Heap::summaryStat function.

Member Function Documentation

void cds::memory::michael::summary_stat::clear ( )

inline

Clears statistics.

All counters are set to zero.

summary_stat& cds::memory::michael::summary_stat::operator-= ( const summary_stat &  stat )

inline

Difference statistics.

This operator computes difference between *this and stat and places the difference to this. Returns *this ;

Field Documentation

size_t cds::memory::michael::summary_stat::nActiveAnchorCASFailureCount

CAS failure counter for updating active field of active block of alloc_from_active Heap internal function.

Contention indicator. The less value is better

size_t cds::memory::michael::summary_stat::nActiveDescCASFailureCount

CAS failure counter for updating active field of active block of alloc_from_active Heap internal function.

Contention indicator. The less value is better

size_t cds::memory::michael::summary_stat::nPartialAnchorCASFailureCount

CAS failure counter for updating anchor field of partial block of alloc_from_partial Heap internal function.

Contention indicator. The less value is better

size_t cds::memory::michael::summary_stat::nPartialDescCASFailureCount

CAS failure counter for updating anchor field of partial block of alloc_from_partial Heap internal function.

Contention indicator. The less value is better

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The documentation for this struct was generated from the following file:

• cds/memory/michael/allocator.h