I started UE5.1.1 on Ubuntu 18.04 and 22.04 respectively, Ubuntu 18.04 is much slower than 22.04, could someone please tell me why?
How slow?
I think there’s a few reasons:
Hardware and software requirements
Ubuntu 22.04 is likely to have more up-to-date hardware and software, which could result in better performance for UE 5.1.
- Operating system optimizations:
Ubuntu 22.04 may have optimizations that improve the overall performance of the system, including the graphics stack and kernel
I personally use ubuntu-21.10, works pretty well. Good luck!
But in general, considering 18.04 came out 5 years ago, it’s pretty much expected that UE 5 would be unoptimized for it:))
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On top of these reasons I also believe 5.1 added compiling shaders on launch right? That would also add to the time to launch
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It takes 4-5 minutes to start the project with Ubuntu18.04, but less than 2 minutes with Ubuntu22.04。
I don’t think it’s a hardware issue, Ubuntu18.04 has better hardware than Ubuntu22.04.
For different versions of Ubuntu, UE should perform the compile shader step
Why not update the 18 to 22? If it’s that much faster it may be an OS update sped up some functionality that UE relies upon