context_vk.cpp::vkCreateDevice takes 328 milliseconds on Ubuntu 20.04

Question

context_vk.cpp::vkCreateDevice takes 328 milliseconds on Ubuntu 20.04

opened this issue 4 years ago · comments

https://github.com/nvpro-samples/shared_sources/blob/520a374b290b53acdc8cd7953e54b15fd26278a3/nvvk/context_vk.cpp#L485

Because of this, all example programs which use nvvk have a noticeable lag each time you run them. For comparison, all OpenGL programs start instantly because no init calls take this much time there, I thought Vulkan is supposed to be faster than OpenGL, not slower? :P

Deleted user · Answer 1 · Sat Apr 18 2020 04:24:49 GMT+0800 (China Standard Time)

NVIDIA Driver Version: 440.82

Martin-Karl Lefrançois · Answer 2 · Tue Sep 14 2021 15:52:06 GMT+0800 (China Standard Time)

This is not an issue with nvvk, but I rather an issue with the driver and the version of Ubuntu. Many are using Ubuntu and have not reported this issue. Please try with a more recent driver.