---
title: "Find Saturation, SLO Failure & OOM Boundaries"
description: "Load test an LLM server to find three boundaries: the rate where it saturates, the rate where the SLO fails, and the context length where memory runs out."
canonical_url: "https://fanout.sh/inference-eng/curriculum/05-05"
md_url: "https://fanout.sh/inference-eng/curriculum/05-05.md"
access: "public"
---

# Find Saturation, SLO Failure & OOM Boundaries

Load test an LLM server to find three boundaries: the rate where it saturates, the rate where the SLO fails, and the context length where memory runs out.

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