The amount of memory that currently has been paged out to storage. Includes memory for file caches, network buffers, and other system services.
The total amount of memory not being used by applications or disk cache.
The amount of memory that is marked as "purgeable". The system can reclaim it if memory pressure increases.
The free amount of swap memory in Kilobytes available to the system.
The total amount of swap memory in Kilobytes available to the system.
The total amount of physical memory in Kilobytes available to the system.