UE4 Recompile in editor is extremely slow (never finishes)

Hello! I’m currently using Unreal Engine 4.7.3 on Windows 8.1, and I’ve been trying to hot reload code in the editor. However, whenever I try this, it never seems to finish (I’ve waited for quite a long time and it has never finished, in my experience), taking faaarrrr longer than compiling in Visual Studio does. Looking in the task manager, it looks like the UnrealBuildTool is running. Is this a quirk specific to my computer, do I just have an absolute lack of processing power (wouldn’t surprise me…), or is this an actual bug?

Hey -

There are a few questions I’d like to ask to help me understand what’s happening. Does the “Compiling C++ Code” window in the bottom right of the editor appear why trying to compile? Are you compiling after changing variables or after changing macros or adding classes? Additionally if you could you post your DXDiag that will help determine if it is an issue of processing power.

Cheers

The compiling window does show up. This happens no matter what I do: Even if I change nothing this still happens. I do not know how to access the dxdiag: How do I do that?

If you right click the start icon (windows logo) and go to run, you can run DXDiag and it will bring up the tool. Clicking the “Save All Information” button will allow you to save a .txt that you can then upload.

Hey ,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you.

Sorry about that: I’ve been extremely busy the past few days and haven’t been able to try any of the solutions. I’ll be able to try them tomorrow. Is that okay?

Alright, here’s my DXDiag: Sorry about the huge delay, I’ve been busy beyond belief this past week… https://dl.dropboxusercontent.com/u/42058321/DxDiag.txt

Also, this may be important/clarifying point: whether I run through VS or not, this still happens. Felt that was a good idea to mention.

Hey -

Thanks for sending the DXDiag. Looking at the information it appears you have somewhat low RAM. We recommend at least 8 gigabytes of ram for good performance. Additionally the graphics card you’re using does not support DirectX 11 which will also have a direct impact on performance. You can check out this forum thread where others have discussed which hardware specs work best for them: [Official] Hardware Performance Survey - Feedback & Requests - Epic Developer Community Forums

Cheers

Alright, that’s what I thought. I’ve just switched over to using blueprints for now while I wait on getting a new computer. Thanks anyways!