On Fri, 5 May 2023 at 21:30, George Karpathios <gkar...@gmail.com> wrote: > > Hi list, > > I'm using Lavapipe for Vulkan software rendering support in a modeling > application. I notice a large performance hit (with any Mesa version) in the > following scenario: The user clicks & drags the mouse in order to create a > simple shape (e.g. plane, cube, sphere) dynamically and the result is being > rendered (basic gray shading) in real-time alongside the movement of the > mouse. Lavapipe seems to be struggling a bit to keep up with this action as > the frame time goes up to over 1 second. On the other hand, on a more > "static" scene I can get great fps (30-60) while panning/rotating a scene, > after Mike Blumenkrantz's recent improvements (many thanks for those again!). > > I've uploaded a screenshot of the VS profiler showing the hot path at > https://imgur.com/a/qZBkB51 and I'd appreciate hearing your thoughts on > this. Thanks once more for your time.
That's a lot of fragment shader recompiles in llvmpipe_update_fs, LP_DEBUG=fs might give some more info if you have a debug build of mes. Dave.
