Windows Internals, Part 1: System architecture, processes, threads, memory management, and more by Pavel Yosifovich & Alex Ionescu & David A. Solomon

Author:Pavel Yosifovich & Alex Ionescu & David A. Solomon [Yosifovich, Pavel]
Language: eng
Format: epub, mobi
Publisher: Pearson Education
Published: 2017-05-05T04:00:00+00:00

Prototype PTEs

If a page can be shared between two processes, the memory manager uses a software structure called prototype page table entries (prototype PTEs) to map these potentially shared pages. For page-file–backed sections, an array of prototype PTEs is created when a section object is first created. For mapped files, portions of the array are created on demand as each view is mapped. These prototype PTEs are part of the segment structure (described in the section “Section objects” later in this chapter).

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