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maxdeviant merged 2 commits into from
Nov 26, 2025
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Detail how to add symbols to samply's output #43472

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Detail how to add symbols to samply's output.
Nov 25, 2025
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run pretty
Nov 26, 2025
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8 changes: 7 additions & 1 deletion docs/src/performance.md
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Expand Up @@ -4,7 +4,13 @@ How to use our internal tools to profile and keep Zed fast.

See what the CPU spends the most time on. Strongly recommend you use
[samply](https://github.com/mstange/samply). It opens an interactive profile in
the browser. See its README on how to install and run.
the browser (specifically a local instance of [firefox_profiler](https://profiler.firefox.com/)).

See [samply](https://github.com/mstange/samply)'s README on how to install and run.

The profile.json does not contain any symbols. Firefox profiler can add the local symbols to the profile for for. To do that hit the upload local profile button in the top right corner.

<img width="851" height="613" alt="image" src="https://github.com/user-attachments/assets/cbef2b51-0442-4ee9-bc5c-95f6ccf9be2c" />

# Task/Async profiling

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