© Igor Zhirkov 2017

Igor Zhirkov, Low-Level Programming, 10.1007/978-1-4842-2403-8_4

4. Virtual Memory

Igor Zhirkov

(1)Saint Petersburg, Russia

This chapter covers virtual memory as implemented in Intel 64. We are going to start by motivating an abstraction over physical memory and then getting a general understanding of how it looks like from a programmer’s perspective. Finally, we will dive into implementation details to achieve a more complete understanding.

4.1 Caching

Let’s start with a truly omnipresent concept called caching .

The Internet is a big data storage. You can access any part of it, but the delay after you made a query can be significant. To smoothen your browsing experience, web browser caches web pages and their elements (images, ...

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