Question / Help OBS using only 1 core?

[CirnoTV]

Hey there! I have an i7 6950x in a streaming PC and as of the past couple of weeks I've been having encoding overload issues on OBS regardless of my encoding preset. I had a look at hardware details in the task manager and I noticed it's only using 1 core at a time. I've tried resetting the processor affinity on obs, and raising the process priority in the program itself but nothing seems to fix it other than reinstalling the program. When I reintall OBS I can stream at Medium encoding preset without issues. That is until the next stream, then it gives me encoding overload again until I do another reinstall. I'm not too sure what the problem is but I've been able to do Medium just fine and now I struggle do push out Very Fast unless I do a reinstall.

Any help would be appreciated! Thanks!

 

[Boildown]

14:27:47.048: crf: 0

Don't use a CRF of zero. Set it to 10 if you want obscenely big files, 15 if you want something more reasonable that will look just as good.

14:15:43.342: [DShow Device: 'Video Capture Device'] settings updated:
14:15:43.342: video device: Video (Pro Capture)
14:15:43.342: video path: \\?\pci#ven_1cd7&dev_0015&subsys_00000001&rev_01#4&fc7f53b&0&0018#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\video
14:15:43.342: resolution: 2560x1440
14:15:43.342: fps: 144.01 (interval: 69438)
14:15:43.342: format: NV12

14:15:45.552: [DShow Device: 'ITG Capture'] settings updated:
14:15:45.552: video device: AVerMedia HD Capture C985 Bus 8
14:15:45.552: video path: \\?\pci#ven_1af2&dev_a001&subsys_a0011af2&rev_00#4&55fc86e&0&00e7#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{957bd672-7934-4b55-b81a-3e22b14c679a}
14:15:45.552: resolution: 1280x720
14:15:45.552: fps: 60.00 (interval: 166666)
14:15:45.552: format: YV12
14:15:45.555: using video device audio: yes
14:15:45.555: sample rate: 48000
14:15:45.555: channels: 2
14:15:45.555: audio type: Capture

14:15:46.234: [DShow Device: 'Video Capture Device 2'] settings updated:
14:15:46.234: video device: AVerMedia Live Gamer HD 2
14:15:46.234: video path: \\?\usb#vid_07ca&pid_0570&mi_00#7&2ac9848d&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global
14:15:46.234: resolution: 1920x1080
14:15:46.234: fps: 60.00 (interval: 166666)
14:15:46.234: format: YUY2

14:15:46.253: [DShow Device: 'ITG Cab Cam'] settings updated:
14:15:46.253: video device: C922 Pro Stream Webcam
14:15:46.253: video path: \\?\usb#vid_046d&pid_085c&mi_00#7&276f8182&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global
14:15:46.253: resolution: 1920x1080
14:15:46.253: fps: 30.00 (interval: 333333)
14:15:46.253: format: MJPEG
14:15:46.253: DShow: HDevice::ConnectPins: failed to connect pins (0x80040207): The owner SID on a per-user subscription doesn't exist

14:29:45.131: [obs-ndi] audio thread for 'NDI™ Source' completed
14:29:45.131: [obs-ndi] video thread for 'NDI™ Source' completed

Just how many input devices do you have in this thing? Care to describe your setup more? Also, you might try to pick just one pixel format instead of having every device using something different (although OBS only complained about the NV12 one).

 

[DasAnime]

Hey, i made a Video about how to solve this Problem! https://youtu.be/jFgWzOt06Xg

 

[ztxmariano]

Hey there! I have an i7 6950x in a streaming PC and as of the past couple of weeks I've been having encoding overload issues on OBS regardless of my encoding preset. I had a look at hardware details in the task manager and I noticed it's only using 1 core at a time. I've tried resetting the processor affinity on obs, and raising the process priority in the program itself but nothing seems to fix it other than reinstalling the program. When I reintall OBS I can stream at Medium encoding preset without issues. That is until the next stream, then it gives me encoding overload again until I do another reinstall. I'm not too sure what the problem is but I've been able to do Medium just fine and now I struggle do push out Very Fast unless I do a reinstall.

Any help would be appreciated! Thanks!

i found out what might fix the problem

so for a while i was having the same issue were OBS was stuttering really badly and it would only use 1 core at 90%-100% and the rest were like 5%-15% and i would use x264 and for some reason today i decided to use DDU to reset my GPU drivers and update them to the latest driver and that fixed the issue for me

specs
I5 11400f
16gbs 3600mhz
RX6500XT (has no video encoder)
gigabyte B650M d3sh ac
512gb SSD

OBS encoder settings
encoder = x264
rate control = CBR
bitrate = 12000kbs
preset = very fast
profile = high
process priority = above normal
recording format = MP4
resolution = 1080p 60fps at bilinear