Nov 18, 2025 · 3 min read · 웹 서비스를 운영할 때 프론트엔드 성능은 사용자 경험과 직결됩니다.사용자가 실제로 느끼는 체감 속도와 상호작용 반응성을 정량화하고 관리하는 것이 중요합니다. 이 글에서는 프론트엔드 관점에서의 SLI와 SLO 정의와 함께,Core Web Vitals(LCP, INP, CLS 등) 기준값과 CrUX 기반 실측 방법을 정리합니다. 1. 프론트엔드 SLI(Service Level Indicator) 프론트엔드에서 SLI는 사용자가 체감하는 성능 지표...
Join discussionOct 19, 2025 · 6 min read · From Reactivity to Predictability in Reliability Engineering The traditional IT operations model is fundamentally reactive, focused on metrics such as Mean Time to Repair (MTTR) after a failure. The discipline of Site Reliability Engineering (SRE) pr...
Join discussion
Oct 2, 2025 · 3 min read · Você já se perguntou por que alguns times conseguem inovar rápido sem impactar a disponibilidade, enquanto outros vivem apagando incêndios? No artigo anterior, vimos como o SRE ajuda a empresa a equilibrar inovação e disponibilidade usando métricas c...
Join discussion
Feb 4, 2025 · 4 min read · When most people think of Site Reliability Engineering (SRE), their minds often gravitate toward incident response, resolving outages, and restoring services. While these tasks are critical, SREs bring much more to the table. In fact, firefighting is...
Join discussion
Oct 4, 2024 · 10 min read · Welcome to Part V of my Kubernetes series! In this installment, we’re going to explore the complex yet crucial process of calculating the Composite Service Level Agreement (SLA) for distributed applic
Join discussion
Jul 24, 2024 · 2 min read · Service Level Objective (SLO) An SLO is a specific measurable goal or target set for a particular service's performance. It is a key component of a Service Level Agreement (SLA) and defines the level of service expected by the customer. You can refer...
Join discussion
Mar 4, 2024 · 9 min read · Let me share what I've learned from 12 years of experience, defining and defending SLOs on various software and hardware systems, including TPU pods, HPC/GPU clusters, and general compute clusters. (This is just an introductory post, but I need to co...
Join discussionApr 1, 2023 · 9 min read · Overview Service Level Objectives (SLOs) and Service Level Indicators (SLIs) are two critical concepts in Site Reliability Engineering (SRE) that help in defining, measuring, and achieving performance goals. SLOs are a set of objectives that define t...
Join discussion