Search Issue Tracker
Fixed in 2019.2.X
Fixed in 2018.3.X, 2019.1.X
Votes
0
Found in
2018.3.5f1
2019.1.0a1
2019.1.0b1
2019.2.0a1
Issue ID
1123745
Regression
No
[Vulkan] Poor performance when using AsyncGPUReadback.Request
How to reproduce:
1. Open attached project
2. Choose Vulkan Graphic API
3. Enter the Play Mode
-- see that the frame rate is very low
4. Choose D3D11 Graphic API
-- frame rate is good
Reproducible with: 2018.3.5f1, 2019.1.0b2, 2019.2.0a4
Not compatible with 2017.4
Actual results: low frame rate
Expected results: normal frame rate
Notes: this happens in both the Editor and Build.
Comments (1)
-
shubhamswaraj2021
Aug 19, 2020 05:50
good one <a href="https://www.lyricsauto.com">lyricsauto</a>
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- [UI Builder] Viewport's gizmos for Margin and Padding disappear when dragging to modify the value and the cursor leaves the Spacing section
- "Multiplayer Center" window does not reflect changes made in "Other Packages" section
- Crash on D3DKMTOpenResource when capturing with RenderDoc while GPU Skinning is set to GPU(Batched)
- Editing and saving Curve changes in UI Builder window throws multiple errors in the Console
- [UI Builder] Value is not selected when left clicking on Spacing/Border Widget values
Resolution Note (fix version 2019.2):
This was caused by the fact that CPU readbacks were using uncached memory heaps, making memory reads from them very slow. Changed them to use cached heap whenever available, bringing the performance to be comparable to DX11.