Description: Host memory refers to the amount of physical memory available on a physical machine that can be allocated to virtual machines. This memory is a critical resource in virtualization environments, as it determines how many virtual machines can run simultaneously and with what performance. Efficient management of host memory is essential to ensure that applications within virtual machines operate optimally. Host memory is measured in gigabytes (GB) and can vary significantly between different servers, depending on their configuration and purpose. Additionally, host memory includes not only RAM but may also encompass other types of temporary storage used by the operating system and applications. Allocating memory to virtual machines must be carefully planned to avoid performance issues, such as memory overcommitment, which can lead to excessive swapping and ultimately degraded performance. Therefore, host memory is a fundamental component in virtualization architecture, as it directly influences the responsiveness and efficiency of virtualized systems.
