CPU out of sync?

zompi2
Fri, 23 Oct 2020 10:10:51 +0000
Getting Started & Setup

Hi!

This might be a strange question, but I don’t know how to describe it better. I noticed a strange fps drop in editor lately. Normally it works with nice and smooth 120fps but sometimes it drops to 90’ish. When I’m looking at unit graph it behaves strange - it hitches all the time:

I checked what is happening in Unreal Insights and it looks like this:

There are empty places in which nothing happens! I was trying to find any task that might cause all other threads to wait but without any luck.

And now - the fun part. After I reboot a computer everything goes back to normal!

I don’t think this is an Unreal issue, rather there is something really strange happening to my computer. I just want to ask if anyone here has any idea what can cause such strange behaviour?

I don’t know how to trigger this, sometimes it just starts to happening and won’t stop until I reboot a computer.

My specs:

Unreal Engine 4.25

Windows 10

AMD Ryzen 7 3800X

Thanks for any ideas and insights!

4 posts - 1 participant