Streaming lag

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I'm trying to livestream rFactor 2 with Open Broadcaster Software, but there is a lot, I mean a lot of lag! I've tried everything, turning the settings down, turning the graphics down, and still no luck. I tested it with rFactor 1 and it works without lagging with OBS fine.

Any help would be appreciated.

 

[Bram Hengeveld]

Got enough upload speed?

 

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The lag is not on the stream, the lag is on my PC, as soon as I click Start Streaming, the game starts lagging a lot!

Got enough upload speed?

 

[Bram Hengeveld]

Ah ok, but without a detailed list of specs its pretty hard to help

 

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My computer is an 8GB RAM HP Windows 7, I have put the settings to as low as they can get, but still no difference.

Ah ok, but without a detailed list of specs its pretty hard to help

 

[Bram Hengeveld]

And the videocard?

 

[Marco Bijl]

Do the following please.

Start all software (do not start the broadcast yet)
Right click on your task bar
Select Task manager
Click on tab Performance
Write down what your average CPU load is (just about), when NOT running stream on, but WITH the game running.

Next, click on Start Streaming on OBS.
check again, and look at the perfomance.

I suspect you are going over 85 / 90 % CPU load there. That causes your lag in the game. The computer can't do all the needed calculations to get you on track.

To optimize, play with the video encoder settings a bit.

 

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Yup that's exactly what happens, I already tried that yesterday.

Graphics card is AMD Radeon HD 6520G

Do the following please.

Start all software (do not start the broadcast yet)
Right click on your task bar
Select Task manager
Click on tab Performance
Write down what your average CPU load is (just about), when NOT running stream on, but WITH the game running.

Next, click on Start Streaming on OBS.
check again, and look at the perfomance.

I suspect you are going over 85 / 90 % CPU load there. That causes your lag in the game. The computer can't do all the needed calculations to get you on track.

To optimize, play with the video encoder settings a bit.

 

[Marco Bijl]

So, what happens is that you overstress your computer. This causes rfactor2 to lower the number of physics calculations it makes, because it's denied time from the processor. And that causes the lag you see.

To avoid, start looking for the CPU eaters. Look in your task manager which processes require CPU, that you do not need. Close programs like FRAPS, SKYPE and all other you do not need when broadcasting.

I use a quadcore 3.4 with 12Gb of mem. It seldom reaches over 5,5 Gb of ram, but my CPU is what I need to watch constantly. I also noticed that the last update of OBC seems to require more CPU.

Ow, and mind that I am talking about your CPU, and not your GPU (Graphic Processor). Its CPU thats causing issues, not the graphic card.