Heap_Statistics Struct Reference

Run-time heap statistics. More...

#include <heapinfo.h>

Data Fields
uint64_t	lifetime_allocated
	Lifetime number of bytes allocated from this heap.
uint64_t	lifetime_freed
	Lifetime number of bytes freed to this heap.
uintptr_t	size
	Size of the allocatable area in bytes.
uintptr_t	free_size
	Current free size in bytes.
uintptr_t	min_free_size
	Minimum free size ever in bytes.
uint32_t	free_blocks
	Current number of free blocks.
uint32_t	max_free_blocks
	Maximum number of free blocks ever.
uint32_t	used_blocks
	Current number of used blocks.
uint32_t	max_search
	Maximum number of blocks searched ever.
uint32_t	searches
	Total number of searches.
uint32_t	allocs
	Total number of successful allocations.
uint32_t	failed_allocs
	Total number of failed allocations.
uint32_t	frees
	Total number of successful frees.
uint32_t	resizes
	Total number of successful resizes.

Detailed Description

Run-time heap statistics.

The value searches / allocs gives the mean number of searches per allocation, while max_search gives maximum number of searches ever performed on a single allocation call.

Field Documentation

free_size

uintptr_t Heap_Statistics::free_size

Current free size in bytes.

This value is an integral multiple of the page size.

lifetime_allocated

uint64_t Heap_Statistics::lifetime_allocated

Lifetime number of bytes allocated from this heap.

This value is an integral multiple of the page size.

lifetime_freed

uint64_t Heap_Statistics::lifetime_freed

Lifetime number of bytes freed to this heap.

This value is an integral multiple of the page size.

min_free_size

uintptr_t Heap_Statistics::min_free_size

Minimum free size ever in bytes.

This value is an integral multiple of the page size.

size

uintptr_t Heap_Statistics::size

Size of the allocatable area in bytes.

This value is an integral multiple of the page size.

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

• cpukit/include/rtems/score/heapinfo.h