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perf(desktop-gpui): borrow presets when rendering the menu - #3103
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the editor's presets dropdown cloned the whole presets store on every repaint while it was open, which deep copies each preset's full project config json. hovering rows repaints it constantly. it only needs to read the store, so it borrows it now.
ignored bench building the menu 10 times per sample, 31 samples, real default preset configs, dev profile on linux: 5 presets 364 to 99µs per repaint, 50 presets 2.63 to 0.53ms. the store is unchanged after rendering.


Confidence Score: 5/5
The PR appears safe to merge; no actionable issues were found.Summary
render_presets_menunow borrows the presets store instead of copying every preset’s configuration on each render.No actionable issues found. Build and runtime checks were not run.
Reviews (1) · Last reviewed commit: "perf(desktop-gpui): borrow presets when ..." · Reviewed by Greptile