---
title: "Goodput, SLOs & Failure Rates"
description: "How to set an SLO on a latency percentile, count the requests that fail it, and report goodput: the throughput that actually met the target."
canonical_url: "https://fanout.sh/inference-eng/curriculum/04-06"
md_url: "https://fanout.sh/inference-eng/curriculum/04-06.md"
access: "public"
---

# Goodput, SLOs & Failure Rates

How to set an SLO on a latency percentile, count the requests that fail it, and report goodput: the throughput that actually met the target.

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