Theory of Intelligence
BACKEND ENGINEERING•Scalability And Reliability•Observability And Sre•2.3 SLIs, SLOs & Error Budgets

2.3.1 SLIs

Subtopics: SLIs, SLOs, Error Budgets and Alerting.

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2.3.1 SLIs

The measurements behind SLOs.

Why it matters

Production systems depend on this idea. Learn the vocabulary and the failure modes before you wire tools.

How it is used

Start with the simplest correct approach. Measure. Add complexity only when load or correctness demands it.

Discuss theoretical concepts, mathematical formulas, and architectural foundations.

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