advertised goal of keeping operational work (i.e., toil) below 50% of each SRE’s time. At least 50% of each SRE’s time should be spent on engineering project work that will either reduce future toil or add service features. Feature development typically focuses on improving reliability, performance, or utilization, which often reduces toil as a second-order effect. Chapter 5 - Eliminating Toil, https://sre.google/sre-book/eliminating-toil/ • 問い合わせの多くはマニュアル的な作業 • 問い合わせの多くは、反復的に発生する • 問い合わせは、サービスや組織の成長によって増える O(n)