> For the complete documentation index, see [llms.txt](https://docs.loci-dev.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.loci-dev.net/loci-inspector/top-bottleneck-in-functions.md).

# Top Bottleneck In Functions

This metric highlights the functions with the most significant performance bottlenecks, focusing on the most time-consuming segment of code within one function that doesn't include the execution time of the callee function (i.e., caller > callee).

<figure><img src="/files/SSdXszFkoC9D1SZJ7VDg" alt=""><figcaption><p>Execution Metrics: Bottleneck Time</p></figcaption></figure>


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