---
title: "Paged attention"
description: "Count useful and reserved cache slots, follow a block table, and see how paging supports growth and safe prefix sharing."
canonical_url: "https://fanout.sh/ai-engineering/lessons/paged-attention"
md_url: "https://fanout.sh/ai-engineering/lessons/paged-attention.md"
access: "public"
---

# Paged attention

Count useful and reserved cache slots, follow a block table, and see how paging supports growth and safe prefix sharing.

---
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