Current commercial high-end machines can support
giga-bytes of physical memory (e.g., SPARCCenter
2000, SGI Challenger), and newer machines are
expected to reach tera-bytes of physical memory. Cur-
rent workstations support up to 0.5 giga-bytes of mem-
ory or more (e.g., SPARCStation-10). The question is
how will large amounts of physical memory, especially
when coupled with support for multiple pages sizes,
affect page replacement?