OpenVMS alpha 64-bit very large memory design
Karen L. Noel, Nitin Y. Karkhanis · 1998
system provides memory management features that extend the 64-bit VLM capabilities introduced in version 7.0. The new OpenVMS Alpha APIs and mechanisms allow 64-bit VLM applications to map and access very large shared memory objects (global sections). Design areas include shared memory objects without disk file backing storage (memory-resident global sections), shared page tables, and a new physical memory and system fluid page reservation system. Database products and other applications impose heavy demands on physical memory. The newest version of DIGITAL’s OpenVMS Alpha operating system extends its very large memory (VLM) support and allows large