I have recently set up Dolphin on an Ubuntu 17.10 box, and I am having some serious performance issues with the Vulkan back end.
My testing game is Zelda TP, and at 2x Native I can get a fairly stable average ~50 FPS (30 FPS is 100% speed) with the OpenGL back end.
When I switch to Vulkan, performance starts to suffer in a big way:
I am running 5.0 (ccfeda6).
Is there anything I can do to test if this is an issue with Dolphin's current support of Vulkan, of the state of Vulkan on Linux, or with the drivers for my chipset?
My testing game is Zelda TP, and at 2x Native I can get a fairly stable average ~50 FPS (30 FPS is 100% speed) with the OpenGL back end.
When I switch to Vulkan, performance starts to suffer in a big way:
- Just sitting there doing nothing in the opening area, looking at more or less a static scene, the frame rate jumps around between 19 and 65 FPS. (its 50+ here on the OpenGL backend).
- Moving the sprite cursor around the screen drops the FPS to 25 until I stop moving it. (It stays at ~50 on the OpenGL backend).
- Some scenes, like the intro panning past the bridge, drop to 10-15 FPS for a bit. (They stay at 45+ on the OpenGL backend).
I am running 5.0 (ccfeda6).
Is there anything I can do to test if this is an issue with Dolphin's current support of Vulkan, of the state of Vulkan on Linux, or with the drivers for my chipset?