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A RAG answer took eleven seconds and nobody can say which stage was slow. Instrument it.

One request touches an embedding call, a vector search, a rerank, a prompt build and a generation, and a single duration for the whole thing tells you nothing about any of them.

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.

One request touches an embedding call, a vector search, a rerank, a prompt build and a generation, and a single duration for the whole thing tells you nothing about any of them.

20 answers per topic instead of 10, and your progress kept · no cardor unlock all 390 remaining answers · ₹2,000 / $25

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Next in this trackYour GPU dashboard shows 95 percent utilisation and finance wants to know why you need more GPUs. What do you tell them?Next in this trackYou need prompt and response logs to debug an AI feature, and legal says no. How do you resolve it?Next in this trackHow do you detect that a model in production got worse, when nothing in your infrastructure metrics changed?

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