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- URL: https://x.com/Varaquilex/status/1883999400260931601
- Author: Volkan İlbeyli (@Varaquilex)
- Posted: 2025-01-27 22:03:54
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1/ @Varaquilex
@NOTimothyLottes
A visualization of said cold caches on a CS workload from Timothy’s GDC 2018 Engine Optimization Hot Lap slides: https://gpuopen.com/wp-content/uploads/2018/05/gdc_2018_sponsored_engine_optimization_hot_lap.pptx
2/ @NOTimothyLottes
@Varaquilex
Amazingly unfortunate that AMD still doesn’t release the tool that those instruction trace captures had been visualized on. It’s the best and most useful tool period I’ve ever seen at any company in the industry.
3/ @NOTimothyLottes
@Varaquilex
If they did choose to release it, I’d teach the world how to use it well, for free. For hardcore optimization it is close to ideal. RGP doesn’t start to really show you what you need to know to make good hardcore engineering decisions on AMD hardware.
4/ @NOTimothyLottes
@Varaquilex
This is a hint for someone like Valve who could take their RADV SQTT (https://www.phoronix.com/news/RADV-SQTT-Profiling-Support) interface and build something truly transformative for GPU shader engineering
5/ @NOTimothyLottes
@Varaquilex
Mix that kind of visualization tool with a good shader compiler (and HW intrinsics) and basically it’s the kind of crack a serious GPU shader dev cannot say no too
6/ @Varaquilex
@NOTimothyLottes
That tool was one of the most insightful tools I have ever used. I do miss it. It would really be awesome to see it released to the public.