DevOps and SRE Metrics: R.E.D., U.S.E., and the "Four Golden Signals"

Success in DevOps and SRE hinges on effective monitoring through metrics frameworks like R.E.D., U.S.E., and the "Four Golden Signals." R.E.D. focuses on Request rate, Error rate, and Duration. U.S.E. centers on Utilization, Saturation, and Errors. The "Four Golden Signals" highlight Latency, Traffic, Errors, and Saturation, providing a high-level overview of system health.