Open Erfan-Ahmadi opened 3 weeks ago
IDEA: We can adjust our heap budget heuristic when hitting allocation failures.
https://discord.com/channels/593902898015109131/723305695046533151/1301552319628054550
Yes just shove it in device limits Fallback paths not worth the man hours of effort
Basically what VK_EXT_memory_budget provides. reports the current usage and budget on each memory heap. This extension is not supported good enough for it to be in core Nabla [1].
we can emulate the "usage" by tracking our allocates and frees. (using atomics per device)
We can emulate "budget" heuristically, by returning 80% of total heap size. (like VMA)
another option is to not return this at all unless the extension is available and log error and return invalid value?
The extension returns those values per "process" but I don't think we can only track per device.
I would like more feedback on this. maybe it's just better not to use this extension at all and just track usage per device.