Doom GPU Flame Graphs
3 days ago
- #GPU Profiling
- #Open Source
- #Performance Analysis
- AI Flame Graphs are now open source with Intel Battlemage GPU support.
- FlameScope enables subsecond-offset heatmap visualization for CPU and GPU utilization.
- CPU analysis reveals shader compilation and NIR preprocessing as key performance factors.
- GPU flame graphs highlight stalls in rendering, postprocessing, stenciling, and sprites.
- GZDoom used as a test case due to its open-source nature and Linux compatibility.
- Intel's iaprof tool requires Linux with root access and specific kernel/driver setups.
- Future work includes broader hardware support and overhead reduction.
- Open sourcing aims to improve performance analysis despite current setup complexities.