Bottleneck when building blueprints

LGZeroGames
Tue, 03 May 2022 17:41:47 +0000
Community & Industry Discussion

Hello,

I am considering upgrading my PC or building a new one to decrease build times.

I work on a big project, with a lot of logic done in blueprint. When I want to test a change on a console (a console-specific behaviour, I can’t test it on PC) (debug is also a pain), I have to wait 2 hours. It sucks, it’s not my choice, I don’t have such issues when I edit C++ but I have to deal with it.

My i7-8700k is only at 17%, my M2 SSD in which Windows, the Project and UE are installed is in low%, my other M2 SSD used exclusively as a ridiculously large swap is barely used too. At least that’s what the task manager says.

I already went from 4h to 2h by going from 32GB to 64GB of RAM, adding the above-mentioned ridiculously large swap (I would need 300 GB of RAM to not swap), and tweaking the garbage collection settings.

I think that maybe RAM speed is the bottleneck and faster ram will save me time. I have DDR4 RAM, I don’t know if DDR5 brings significant gains. Clock speed is higher, but latency in μs not so much.

Is RAM really the problem or I am missing something? What is the most cost efficient way to decrease the build time?

6 posts - 3 participants