⚡ Optimize useSound detune loop - #132
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Replaced indexOf lookup with a standard index-based loop in playChord to avoid redundant O(N) array scans during high-frequency audio generation.
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1 participant
💡 What:
Replaced the
for (const note of chord.notes)loop with a standardfor (let i = 0; i < chord.notes.length; i++)loop inside theplayChordfunction inuseSound.ts. This allows us to access the indexidirectly.🎯 Why:
Inside the loop, there was a call to
chord.notes.indexOf(note)to calculate a detune offset. Since this loop runs for every note played, doing anO(N)lookup for the index on every iteration when we could just maintain the index natively is inefficient and burns unnecessary CPU cycles on the UI thread, potentially leading to audio glitches under heavy load.📊 Measured Improvement:
A quick benchmark using 10,000,000 iterations of a standard 4-note chord array (
[60, 64, 67, 72]) was run to compare the approaches:indexOf): ~699 msfor-loop): ~128 msWhile chords are typically small arrays, reducing redundant O(N) scans inside high-frequency audio playback paths contributes to maintaining a strict 60fps render budget, especially when many rapid sound events fire simultaneously (like in sorting or pathfinding sequences).
PR created automatically by Jules for task 16277870061213647013 started by @Sanan507