Question / Help Not using global sources = better on low end pc?

[Bkid]

So let's start by saying that my laptop is not the greatest. Actually, it's a little over 5 years old now, but it still gets the job done. I do, however, have very fast and reliable Internet. I've been looking around at different streaming software, and I was just turned on to OBS today. I've been poking around with different settings to get the stream to work better, and sacrifice as little quality as possible, and I had a question about something.

In the help file, it says global sources "start up when first used, and are destroyed only when a stream ends". It seems as though CPU would be used for doing such a thing, even when that source isn't being used at the time. I play League of Legends, and only have 3 sources right now: pvp.net (the main client), League of Legends (the game client/playing a game), and my full desktop (downtime, not playing a game).

I put each one in it's own scene so I can switch between them with 3 hotkeys. They are all global sources right now, but technically they don't need to be because I won't care if the other 2 are off while I'm using the 3rd one.


The main (tl;dr) question: Would making my sources non-global help me save any ounce of CPU (at the expense of possibly a black screen in between scene changes or something else I wouldn't really care about)?


My laptop: http://www.newegg.com/Product/Product.a ... 6834220182 (except 4GB RAM and Windows 7)

 

[Lain]

It's primarily if you're using devices when using multiple scenes.. Loading/unloading devices is just slow, and causes the video to pause (which is somewhat of a design flaw that I can fix). Generally though loading devices such as webcams requires time for them to initiate.

You should be fine as long as you don't have like 20 global sources in use or something.

 

[micechal]

Also Jim, similar question: does disabling preview give any performance on low end machines?