Compaq Tru64 UNIX Hauptspezifikationen PDF herunterladen (Seite 19)

Big Memory Pages

Big Pages memory allocation supports mapping a page of virtual memory to 8, 64, or 512 pages of physical memory. Given

physical memory's current 8-KB page size, this means that a single page of virtual memory can map to 64, 512, or 4096 KB.

Using big pages can minimize the performance penalties that are associated with misses in the translation look aside buffer.

The result can be improved performance for applications that need to map large amounts of data.Big Pages memory

allocation has the following characteristics:

Allows a virtual page in the process address space to be mapped to the most appropriate multiple-page granularity

option supported by the system's physical memory.

Uses threshold values set on a per memory-type basis to determine whether a memory allocation request is eligible for

use of the extended page sizes.

QuickSpecs

HP Tru64 UNIX Operating System Version V5.1B

Memory Management

DA - 11939 U.S. QuickSpecs — Version 1 — 4/8/2004

Page 19

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 38 39

Keine Kommentare

Compaq Tru64 UNIX Hauptspezifikationen Seite 19