---
title: thunder.cache_hits
description: Returns the number of cache hits we found when running the function.
canonical: >-
  https://lightning.ai/docs/thunder/stable/api-reference/generated/thunder.cache_hits
---
# thunder.cache_hits {#thunder-cache-hits}

### `thunder.cache_hits(fn)` {#thunder.cache_hits}

[\[source\]](https://github.com/Lightning-AI/lightning-thunder/blob/0.2.6/thunder/__init__.py#L983-L988)

Returns the number of cache hits we found when running the function.

Return type:

[`int`](https://docs.python.org/3/builtins/functions.html#int "(in Python v3.15)")

---

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