I have a cross-platform application. I compiled it for both Linux and Windows. On the same machine (2070 super, AMD 3950x), my scene is rendered at 80~90 fps on Windows and 30~40 fps on Linux. I played with shadow maps but they do not affect performance so much.
Could this be a GPU driver issue? Any advice for improving the performance on Linux?
Yes it is low end system, anyway few steam’s games are running properly on it as : civilisation V, borderlands , haven park, … Yes I know it is old games …
Anyway the issue came from the graphics cards which have 2mo of memory. 4mo seems the minimum with vulkan.