Vulkan better performances than OpenGL (exynos)

[jojos38]

Hello, I am running a Galaxy S8 on latest Pie with updated Mali drivers. I tried using OpenGL and Vulkan with Mutlithreading and it appear that Vulkan have WAY better performances (+20fps) than OpenGL. It is normal ? Is there anything to do on Exynos CPU for OpenGL to work correctly ?
Also I noticed that "enabling Skip EFB Access from CPU" increase my performance by around 20 fps ! But I can't use the in-game IR. Is there any way to use this option and keep IR support ?

Thanks

[JosJuice]

(02-24-2019, 11:54 PM)jojos38 Wrote: I tried using OpenGL and Vulkan with Mutlithreading and it appear that Vulkan have WAY better performances (+20fps) than OpenGL. It is normal ?

Probably. Doesn't wound weird, at least.

(02-24-2019, 11:54 PM)jojos38 Wrote: Is there anything to do on Exynos CPU for OpenGL to work correctly ?

Is it not working correctly right now? (Other than having lower performance)

(02-24-2019, 11:54 PM)jojos38 Wrote: Also I noticed that "enabling Skip EFB Access from CPU" increase my performance by around 20 fps ! But I can't use the in-game IR. Is there any way to use this option and keep IR support ?

No.

[jojos38]

I see, thank you

[JMC47]

The CPU reads the EFB (framebuffer) in order to see what the pointer is hovering over. So you can see why disabling that feature breaks the pointer.

[jojos38]

(02-26-2019, 02:19 AM)JMC47 Wrote: The CPU reads the EFB (framebuffer) in order to see what the pointer is hovering over.  So you can see why disabling that feature breaks the pointer.

It cost a lot of performance :/

[JMC47]

Yeah, it's expensive for the CPU to access the framebuffer. There isn't much we can do about that except wait for devices to get faster to it's not a problem.