Question / Help Please help - sudden OBS overload during livestream from 3ms to 120ms+

[Maxymedia]

Hi,

Help needed
Love OBS but having a major problem & hoping someone with superior OBS technical know-how can help?

Problem
Near the end of my livestream last night my OBS PC suddenly glitched, the processor skyrocketed, FPS dropped, time to render went from around 3ms to 120ms (and above), causing OBS to be unusable and I had to kill the stream. This has happened several times.

The problem only seems to appear when running OBS - not sure if caused within OBS or another program running (I've tried suspending other apps using Windows Process Explorer)

I've reduced scene complexities, output to 1080p

Setup
I've a three PC setup -

• PC 1 - Streaming computer - video source from Laptop 2 via NDI
• Laptop 1 - Gaming computer - video output NDI to Laptop 2
• Laptop 2 - (Dell XPS 15 9560) - Main OBS switch with
  • Video sources coming in via USB camera (Logitech Brio) & NDI (Laptop 1).
  • Audio sources from PC1 to Laptop 2 Voicemeter to OBS.

Please find logfile attached - problem happened late in the stream

Thank you

 

[BluePeer]

if i understand it right
you play on Laptop 1
the signal goes To Laptop 2 where you make the scene transitions audiomixing ....
send this to PC 1 that only take it and Send the Encode stream to the world

so the encode is on PC1 why you uploaded the log from Laptop2? there is no stream/record in

 

[Maxymedia]

if i understand it right
you play on Laptop 1
the signal goes To Laptop 2 where you make the scene transitions audiomixing ....
send this to PC 1 that only take it and Send the Encode stream to the world

so the encode is on PC1 why you uploaded the log from Laptop2? there is no stream/record in

Hi and thanks for the reply

Laptop 2 (OBS Switch) does the video source switching and sends that over NDI to PC01 (OBS Stream) which is the streaming machine.
The problem was on Laptop 2 with switching.

Solution.
I stripped back all the devices plugging into Laptop2 and removed/ disabled many on the apps. Worked perfectly last night so I've narrowed down the problem to either

A. Too many NDI sources
B. Adobe Creative Cloud running in the background
C. Reduced OBS Scene complexity (including additional plugins)

 

[Maxymedia]

Ahhhh - my system overloading problem has crept back in. I've managed to take a screen capture and it appears there is something to do with the networking that is causing OBS rendering problem. I'm using NDI to bring in video content from Laptop 1 (Gaming) to :Laptop 2 (OBS Switch) to PC 3 (OBS Streaming) via NDI