Abstract: Methods and systems for efficiently managing an application's address space are provided. An application requests physical memory beyond what is permissibly provided by the operating system. The application's virtual memory addresses are efficiently managed so that when access to a memory buffer is desired by the application, the logic required to map the buffer into the application's address space has been substantially completed prior to the application's request. Additionally, a method and system efficiently flushes, in advance of a need by an application, a virtual memory address from the virtual-to-physical memory caches (e.g., TLBs) of multiple processors on which the application is running.

Abstract: A method implemented in hardware to concurrently obtain memory access locality information for a large number of contiguous sections of system memory (pages) for the purposes of optimizing memory and process assignments in a multiple-node NUMA architecture computer system including a distributed system memory. Page access monitoring logic is included within each processing node which contains a portion of shared system memory. This page access monitoring logic maintains a plurality of page access counters, each page access counter corresponding to a different memory page address within the shared system memory. Whenever the processing node generates a transaction requiring access to a memory address within system memory, the page access monitoring logic increments a count value contained within the page access counter corresponding to the memory address to which access is sought.