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gfx-rs / gfx

[maintenance mode] A low-overhead Vulkan-like GPU API for Rust.
http://gfx-rs.github.io/
Apache License 2.0
5.35k stars 548 forks source link

Transfer benchmarking example, dx12 query resolve #3620

Closed kvark closed 3 years ago

kvark commented 3 years ago

Introduces a new example for benchmarking small transfers! Fixes a small case where Linearly tiled image is created on the known memory. This is still a hack, but more useful than the old code.

Interestingly, the AMD machine on windows totally craps out when the total number of copy regions exceeds 4M per submission. So I had to keep the size down.

Results for 1K by 1K: API OS Hardware image->image buffer->image
Vulkan Win7 AMD Rx470 320ms 18 ms
Vulkan Win10 Gtx1080 19ms 19ms
Vulkan Win10 Iris 530 620ms 620ms
Results for 512 by 512: API OS Hardware image->image buffer->image
DX12 Win10 AMD 3500U 836ms 600 ms
Vulkan Win10 AMD 3500U 95ms 6ms

On Metal and DX11, timestamps are not implemented yet.

PR checklist:

tangmi commented 3 years ago

I ran the example on my computer, in case the extra data points help

Results for 1K by 1K: API OS Hardware image->image buffer->image
DX12 Win10 Gtx1080 573 832
DX12 Win10 Gtx1080 472 832
Vulkan Win10 Gtx1080 479 22
Vulkan Win10 Gtx1080 480 22
Results for 512 by 512: API OS Hardware image->image buffer->image
DX12 Win10 Gtx1080 136 211
DX12 Win10 Gtx1080 119 207
Vulkan Win10 Gtx1080 142 6
Vulkan Win10 Gtx1080 133 5
kvark commented 3 years ago

bors r=tangm,kvark

bors[bot] commented 3 years ago

Build failed:

kvark commented 3 years ago

bors r=tangm,kvark

bors[bot] commented 3 years ago

Build succeeded: