Virtualize memory
Learn how memory is virtualized to support cloud resources. Covers different types of memory mapping and related issues.
Learning objectives
In this module, you will:
- Identify how most general-purpose operating systems support virtual memory
- Discuss the one-level page mapping between virtual and physical addresses
- Identify the difference between one-level page mapping, as provided in traditional operating systems, and two-level page mapping, as provided in system memory virtualization
- Discuss multiple-level page mapping as implied by various virtualized environments, such as native and user-mode hosted virtualized systems
- Define memory overcommitment, and discuss the benefits it provides to virtualized systems
- Describe what reclamation techniques are and why they are needed
- Explain memory ballooning in VMware ESXi as an example of a reclamation technique
In partnership with Dr. Majd Sakr and Carnegie Mellon University.
Prerequisites
- Understand what cloud computing is, including cloud service models, and common cloud providers
- Know the technologies that enable cloud computing
- Understand how cloud service providers pay for and bill for the cloud
- Know what datacenters are and why they exist
- Know how datacenters are set up, powered, and provisioned
- Understand how cloud resources are provisioned and metered
- Be familiar with the concept of virtualization
- Know what the different types of virtualization are
- Understand CPU virtualization