SQLITE_STATUS_MEMORY_USED(3) Library Functions Manual SQLITE_STATUS_MEMORY_USED(3)

SQLITE_STATUS_MEMORY_USED, SQLITE_STATUS_PAGECACHE_USED, SQLITE_STATUS_PAGECACHE_OVERFLOW, SQLITE_STATUS_SCRATCH_USED, SQLITE_STATUS_SCRATCH_OVERFLOW, SQLITE_STATUS_MALLOC_SIZE, SQLITE_STATUS_PARSER_STACK, SQLITE_STATUS_PAGECACHE_SIZE, SQLITE_STATUS_SCRATCH_SIZE, SQLITE_STATUS_MALLOC_COUNT
Status Parameters

#define SQLITE_STATUS_MEMORY_USED
#define SQLITE_STATUS_PAGECACHE_USED
#define SQLITE_STATUS_PAGECACHE_OVERFLOW
#define SQLITE_STATUS_SCRATCH_USED
#define SQLITE_STATUS_SCRATCH_OVERFLOW
#define SQLITE_STATUS_MALLOC_SIZE
#define SQLITE_STATUS_PARSER_STACK
#define SQLITE_STATUS_PAGECACHE_SIZE
#define SQLITE_STATUS_SCRATCH_SIZE
#define SQLITE_STATUS_MALLOC_COUNT

These integer constants designate various run-time status parameters that can be returned by sqlite3_status().
SQLITE_STATUS_MEMORY_USED
This parameter is the current amount of memory checked out using sqlite3_malloc(), either directly or indirectly. The figure includes calls made to sqlite3_malloc() by the application and internal memory usage by the SQLite library. Auxiliary page-cache memory controlled by SQLITE_CONFIG_PAGECACHE is not included in this parameter. The amount returned is the sum of the allocation sizes as reported by the xSize method in sqlite3_mem_methods.
SQLITE_STATUS_MALLOC_SIZE
This parameter records the largest memory allocation request handed to sqlite3_malloc() or sqlite3_realloc() (or their internal equivalents). Only the value returned in the *pHighwater parameter to sqlite3_status() is of interest. The value written into the *pCurrent parameter is undefined.
SQLITE_STATUS_MALLOC_COUNT
This parameter records the number of separate memory allocations currently checked out.
SQLITE_STATUS_PAGECACHE_USED
This parameter returns the number of pages used out of the pagecache memory allocator that was configured using SQLITE_CONFIG_PAGECACHE. The value returned is in pages, not in bytes.
SQLITE_STATUS_PAGECACHE_OVERFLOW
This parameter returns the number of bytes of page cache allocation which could not be satisfied by the SQLITE_CONFIG_PAGECACHE buffer and where forced to overflow to sqlite3_malloc(). The returned value includes allocations that overflowed because they where too large (they were larger than the "sz" parameter to SQLITE_CONFIG_PAGECACHE) and allocations that overflowed because no space was left in the page cache.
SQLITE_STATUS_PAGECACHE_SIZE
This parameter records the largest memory allocation request handed to pagecache memory allocator. Only the value returned in the *pHighwater parameter to sqlite3_status() is of interest. The value written into the *pCurrent parameter is undefined.
SQLITE_STATUS_SCRATCH_USED
No longer used.
SQLITE_STATUS_SCRATCH_OVERFLOW
No longer used.
SQLITE_STATUS_SCRATCH_SIZE
No longer used.
SQLITE_STATUS_PARSER_STACK
The *pHighwater parameter records the deepest parser stack. The *pCurrent value is undefined. The *pHighwater value is only meaningful if SQLite is compiled with YYTRACKMAXSTACKDEPTH.

New status parameters may be added from time to time.

sqlite3_malloc(3), sqlite3_mem_methods(3), sqlite3_malloc(3), sqlite3_status(3), SQLITE_CONFIG_SINGLETHREAD(3)
December 19, 2018 NetBSD 9.2