Memory statistics. More...

#include <pfs_stat.h>

Public Member Functions
void	reset ()

void	rebase ()

PFS_memory_stat_alloc_delta *	count_alloc (size_t size, PFS_memory_stat_alloc_delta *delta)

PFS_memory_stat_free_delta *	count_free (size_t size, PFS_memory_stat_free_delta *delta)

Detailed Description

Memory statistics.

Conceptually, the following statistics are maintained:

CURRENT_COUNT_USED,
LOW_COUNT_USED,
HIGH_COUNT_USED
CURRENT_SIZE_USED,
LOW_SIZE_USED,
HIGH_SIZE_USED Now, the implementation keeps different counters, which are easier (less overhead) to maintain while collecting statistics. Invariants are as follows: CURRENT_COUNT_USED = m_alloc_count - m_free_count LOW_COUNT_USED + m_free_count_capacity = CURRENT_COUNT_USED CURRENT_COUNT_USED + m_alloc_count_capacity = HIGH_COUNT_USED CURRENT_SIZE_USED = m_alloc_size - m_free_size LOW_SIZE_USED + m_free_size_capacity = CURRENT_SIZE_USED CURRENT_SIZE_USED + m_alloc_size_capacity = HIGH_SIZE_USED

Member Data Documentation

size_t PFS_memory_safe_stat::m_alloc_count

size_t PFS_memory_safe_stat::m_alloc_count_capacity

size_t PFS_memory_safe_stat::m_alloc_size

size_t PFS_memory_safe_stat::m_alloc_size_capacity

size_t PFS_memory_safe_stat::m_free_count

size_t PFS_memory_safe_stat::m_free_count_capacity

size_t PFS_memory_safe_stat::m_free_size

size_t PFS_memory_safe_stat::m_free_size_capacity

bool PFS_memory_safe_stat::m_used

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