Understanding service level objectives (SLOs) is crucial for defining the promises made to end users, including latency and error rates. Yechezkel emphasizes the importance of measuring metrics like P 95 and P 99, as average metrics can obscure critical anomalies that may impact user experience, especially in industries like fintech and gaming. Effective monitoring and instrumentation are essential to ensure that service standards are maintained and that no new changes inadvertently compromise performance.
