Question / Help High CPU usage, especially first core.

[Casanova]

Alright, the issue might be with League, I'm not certain. I've messaged their support as well.

Basically if obs is running, idle or streaming or recording, and I tab out of league and back in, my first core usage goes up ~40% permanently unless I relaunch and never tab out.

I've also been experiencing slight stuttering in overwatch recently, though that game should be using a lot more of my cpu and the fault might just be my hardware. I was recently able to play at 120fps and stream without stuttering though, so it seems to have started recently? Even if I lower the fps to 100/60 it seems a bit laggy, only when obs is open.

Issue mainly seems to be the first core, here is a detailed screenshot of cpu usage with league mostly.

http://image.prntscr.com/image/66b0b9d3dbba4698aa3ce25e5511eb27.png

Here's another of me in overwatch messing around with framerates.

http://image.prntscr.com/image/e51af6da98724d5ca01a66fa12a6266c.png

You can see at some times the first core is maxed out and I do get occasional stuttering in general, lowering framerates seems to help most of the issues, but it's still having more trouble than it was a month ago or so.

Just feels like OBS is using more cpu than usual, I don't CPU encode atm, so really just the program running alone is causing issues for me.

Thanks, here's some logs.

https://gist.github.com/anonymous/0eb1035eeb965b2e2a4a63a0d7864995

 

[Osiris]

Using Avast? If so disable it's gaming mode.

 

[Casanova]

I may be speaking too soon but it appears to have fixed the issue, is there a reason this was happening or something I could read that explains the issue?

Thanks a lot!

 

[R1CH]

Nothing really to explain. Avast game mode stops all other programs from using CPU by pinning them to a single core, this supposedly optimizes your game. Not really sure why an antivirus program would have such a feature but there you go.