Install vmtouch by entering the following commands in the terminal:
sudo apt update sudo apt install vmtouch
Description:
Portable file system cache diagnostics and control
vmtouch is a tool for learning about and controlling the file system cache of unix and unix-like systems. It can discover which files the OS is caching, tell the OS to cache or evict some files or regions of files, lock files into memory so the OS won't evict them, and more.
Homepage: https://hoytech.com/vmtouch/
Version: 1.3.0-1
Section: universe/admin