Effectively measuring the performance of DevOps and SRE teams involves focusing on Service-Level Objectives (SLOs), Service-Level Indicators (SLIs), and Service-Level Agreements (SLAs) to ensure product quality, fast deployments, and customer satisfaction, as exemplified by Google's approach. These metrics help in understanding system availability, request failures, and service agreements with customers, allowing companies to evaluate the reliability and functionality of their applications. Although monitoring every aspect of an application is challenging, adopting a targeted approach by concentrating on essential metrics can help ensure teams are meeting performance expectations. By aligning these measurements with the broader company goals of product quality and customer satisfaction, organizations can better understand and enhance their operations while ensuring their teams are contributing effectively to the success of the company.