Abstract: A system for computer memory management includes a memory pool table, each memory pool in the table representing memory pages related by common attributes, and each memory pool associated with a virtual machine index; a per-page tracking table, each entry in the per-page tracking table to relate a memory page with virtual machine indices of the memory pool table; and processing circuitry to: scan each entry in the per-page tracking table and, for each entry: determine an amount of memory released if the memory page related with the entry is swapped; and aggregate the amount of memory for the respective virtual machine related with the memory page related with the entry in the per-page tracking table, to produce a per-virtual machine memory aggregate using the respective virtual machine index; and output the per-virtual machine memory aggregate for virtual machines related with the memory pages in the per-page tracking table.