Description: Guest performance monitoring refers to the process of tracking and analyzing performance metrics of an operating system running in a virtualized environment or within a containerized platform. This process is crucial to ensure that virtual machines (VMs) and containers operate optimally and efficiently. Through various tools and techniques, administrators can observe parameters such as CPU usage, memory, storage, and network, allowing them to identify bottlenecks, performance issues, and areas that require optimization. Effective monitoring not only helps maintain the health of the guest operating system but also enables better resource planning and quick response to incidents. Additionally, guest performance monitoring is fundamental in production environments, where availability and efficiency are critical. The metrics collected can be analyzed in real-time or stored for later review, facilitating informed decision-making about the virtual infrastructure. In summary, guest performance monitoring is an essential practice in virtualization and cloud computing, ensuring that guest operating systems operate efficiently and meet established performance expectations.