# Berkeley DB: Memory Pools and Related Methods

Memory Pools and Related Methods | Description
--- | ---
DB_ENV->set_cachesize | Set the environment cache size
DB_ENV->set_mp_mmapsize | Set maximum mapped-in database file size
DB_ENV->memp_register | Register input/output functions for a file in a memory pool
DB_ENV->memp_stat | Return memory pool statistics
DB_ENV->memp_sync | Flush pages from a memory pool
DB_ENV->memp_trickle | Trickle flush pages from a memory pool
DB_ENV->memp_fcreate | Open a file in a memory pool
DB_MPOOLFILE->close | Close a file in a memory pool
DB_MPOOLFILE->get | Get page from a file in a memory pool
DB_MPOOLFILE->open | Open a file in a memory pool
DB_MPOOLFILE->put | Return a page to a memory pool
DB_MPOOLFILE->set | Set memory pool page status
DB_MPOOLFILE->sync | Flush pages from a file in a memory pool
DB_MPOOLFILE->set_clear_len | Set file page bytes to be cleared
DB_MPOOLFILE->set_fileid | Set file unique identifier
DB_MPOOLFILE->set_ftype | Set file type
DB_MPOOLFILE->set_lsn_offset | Set file log-sequence-number offset
DB_MPOOLFILE->set_pgcookie | Set file cookie for pgin/pgout

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