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Define the SLIs and SLOs for a streaming LLM endpoint. Why is p99 latency the wrong headline metric?

A request that streams for ninety seconds is not slow, it is long. Total latency mixes the part users wait for with the part they read, and an SLO built on it will page you for success.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

A request that streams for ninety seconds is not slow, it is long. Total latency mixes the part users wait for with the part they read, and an SLO built on it will page you for success.

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