python3-reflink

Python Library wrapping platform-specific reflink implementations

Python wrapper around the ``reflink`` system calls.

postgresql-16-pgfincore

set of PostgreSQL functions to manage blocks in memory

Those functions let you know which and how many disk block from a relation are in the page cache of the operating system, and eventually write the result to a file. Then using this file, it is possible to restore the page cache state for each block of the relation.