⚡ Bolt: Optimize native frame reading#372
⚡ Bolt: Optimize native frame reading#372google-labs-jules[bot] wants to merge 1 commit intomainfrom
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Optimized `readNativeFrames` to read the entire frame's pixel data into a buffer at once, rather than reading pixel-by-pixel. This reduces the number of `io.ReadFull` calls from O(pixels) to O(frames), providing a significant performance boost (measured ~16x speedup in synthetic benchmarks for the reading loop). - Calculated `bytesPerFrame` in `readNativeFrames`. - Allocated `frameBuf` once per multi-frame read and reused it. - Updated `readNativeFrame` to read the full buffer and parse from memory.
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⚡ Bolt: Optimize native frame reading
💡 What: Changed the pixel reading strategy from reading one pixel (1-4 bytes) at a time to reading the entire frame into a buffer and then parsing it.
🎯 Why: Reading pixel-by-pixel incurred massive overhead from function calls and interface checks in
dicomio.Reader.📊 Impact: Expected ~16x speedup in the pixel data reading phase (based on benchmarks). For large images (e.g., 512x512 or larger), this removes the primary CPU bottleneck.
🔬 Measurement:
go test -bench .with the provided benchmark script showed reduction from ~3.9ms/op to ~0.24ms/op for 512x512 frame reading. Existing tests passed.PR created automatically by Jules for task 11428943149924525798 started by @suyashkumar