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Start recording display benchmark results

Vectornaut 2024-09-02 22:46:49 +00:00
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To make sure the display stays responsive, we've been tracking how changes affect its performance.
## Procedure
Build with `--release`. Test on Chromium with VSCodium, gedit, and the AMDGPU_TOP GUI running, and all other programs closed. In case it matters, keep the display prototype fully visible on the right half of the screen, with the AMDGPU_TOP plots visible on the left half. Start the turntable and then monitor AMDGPU_TOP stats for a minute or so.
## Results
Commit | Description | Graphics pipe | Browser CPU | Browser GFX | GPU power | Comments
---|---|---|---|---|---|---
`4afc820` | Sort fragments while shading | 50–60% | 15–30% | 50% | 9 W
`4afc` variant | `SPHERE_MAX_INTERNAL = 12` | 80–90% | 15–20% | 80–90% | 27 W
`4afc` variant | `SPHERE_MAX_INTERNAL = 4` | 40–50% | 15–20% | 35–40%
`e80adf8` | Correct hit detection | 50–60% | 15–30% | 50% | 9 W | *Texture pipe* and *efficiency arbiter* are more like 45–60%