Question / Help OBS Studio 20.1.1 CPU Usage increase

[updogdrew]

When I launch OBS, the CPU usage is around 2-3% when I don't have my capture card displaying. When I add my capture card, the CPU usage increases to around 22+%. I don't understand why, I have had my capture card in OBS hooked up to the same consoles and had it under 10% CPU before, but now it is double. Every time I stream I drop frames like crazy when I didn't have that problem as bad before. My bitrate is at 2000 on a 60 up/down connection. I don't know what my PC specs are, but I do my processor is an i7.

Here is my current log file:
23:06:54.083: CPU Name: Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
23:06:54.083: CPU Speed: 2395MHz
23:06:54.083: Physical Cores: 4, Logical Cores: 8
23:06:54.083: Physical Memory: 8077MB Total, 4221MB Free (NOTE: 32bit programs cannot use more than 3gb)
23:06:54.083: Windows Version: 10.0 Build 15063 (revision: 674; 64-bit)
23:06:54.083: Running as administrator: false
23:06:54.083: Aero is Enabled (Aero is always on for windows 8 and above)
23:06:54.084: Windows 10 Gaming Features:
23:06:54.084: Game Bar: Off
23:06:54.084: Game DVR Allowed: Yes
23:06:54.084: Game DVR: On
23:06:54.084: Game DVR Background Recording: Off
23:06:54.084: Game Mode: Off
23:06:54.085: Portable mode: false
23:06:54.126: OBS 20.1.1 (windows)
23:06:54.126: ---------------------------------
23:06:54.128: ---------------------------------
23:06:54.128: audio settings reset:
23:06:54.128: samples per sec: 48000
23:06:54.128: speakers: 2
23:06:54.132: ---------------------------------
23:06:54.132: Initializing D3D11...
23:06:54.132: Available Video Adapters:
23:06:54.142: Adapter 1: Intel(R) HD Graphics 4000
23:06:54.142: Dedicated VRAM: 33554432
23:06:54.142: Shared VRAM: 1845493760
23:06:54.142: output 1: pos={0, 0}, size={1920, 1080}, attached=true
23:06:54.142: output 2: pos={1920, 0}, size={1440, 900}, attached=true
23:06:54.142: Adapter 2: NVIDIA GeForce GT 635M
23:06:54.142: Dedicated VRAM: 2096693248
23:06:54.142: Shared VRAM: 2198208512
23:06:54.150: Loading up D3D11 on adapter Intel(R) HD Graphics 4000 (0)
23:06:54.157: D3D11 loaded successfully, feature level used: 45056
23:06:57.132: ---------------------------------
23:06:57.132: video settings reset:
23:06:57.132: base resolution: 1280x720
23:06:57.132: output resolution: 1280x720
23:06:57.132: downscale filter: Bilinear
23:06:57.132: fps: 30/1
23:06:57.132: format: NV12
23:06:57.170: Audio monitoring device:
23:06:57.170: name: Default
23:06:57.170: id: default
23:06:57.211: ---------------------------------
23:06:57.316: Required module function 'obs_module_load' in module '../../obs-plugins/32bit/chrome_elf.dll' not found, loading of module failed
23:06:58.312: [CoreAudio encoder]: Adding CoreAudio AAC encoder
23:06:58.425: [AMF] Encountered Exception during AMF initialization: Unable to load 'amfrt32.dll', error code 126.
23:06:58.425: Failed to initialize module 'enc-amf.dll'
23:07:00.391: Required module function 'obs_module_load' in module '../../obs-plugins/32bit/libcef.dll' not found, loading of module failed
23:07:00.452: Required module function 'obs_module_load' in module '../../obs-plugins/32bit/libEGL.dll' not found, loading of module failed
23:07:00.537: Required module function 'obs_module_load' in module '../../obs-plugins/32bit/libGLESv2.dll' not found, loading of module failed
23:07:00.569: Failed to load 'en-US' text for module: 'obs-browser.dll'
23:07:00.569: [browser_source: 'Version: 1.29.0']
23:07:01.517: LoadLibrary failed for 'nvEncodeAPI.dll': The specified module could not be found.
23:07:01.517: (126)
23:07:05.073: VLC found, VLC video source enabled
23:07:05.463: No blackmagic support
23:07:08.035: ---------------------------------
23:07:08.035: Loaded Modules:
23:07:08.035: win-wasapi.dll
23:07:08.035: win-mf.dll
23:07:08.035: win-dshow.dll
23:07:08.035: win-decklink.dll
23:07:08.035: win-capture.dll
23:07:08.035: vlc-video.dll
23:07:08.035: text-freetype2.dll
23:07:08.035: rtmp-services.dll
23:07:08.035: obs-x264.dll
23:07:08.035: obs-vst.dll
23:07:08.036: obs-transitions.dll
23:07:08.036: obs-text.dll
23:07:08.036: obs-qsv11.dll
23:07:08.036: obs-outputs.dll
23:07:08.036: obs-filters.dll
23:07:08.036: obs-ffmpeg.dll
23:07:08.036: obs-browser.dll
23:07:08.036: image-source.dll
23:07:08.036: frontend-tools.dll
23:07:08.036: enc-amf.dll
23:07:08.036: coreaudio-encoder.dll
23:07:08.036: ---------------------------------
23:07:08.036: ==== Startup complete ===============================================
23:07:10.639: All scene data cleared
23:07:10.639: ------------------------------------------------
23:07:10.842: WASAPI: Device 'Speakers (Realtek High Definition Audio)' initialized
23:07:11.245: WASAPI: Device 'Microphone (Realtek High Definition Audio)' initialized
23:07:16.393: warning: deprecated pixel format used, make sure you did set range correctly
23:07:16.413: warning: Warning: data is not aligned! This can lead to a speed loss
23:07:16.525: warning: deprecated pixel format used, make sure you did set range correctly
23:07:16.625: warning: deprecated pixel format used, make sure you did set range correctly
23:07:17.135: warning: deprecated pixel format used, make sure you did set range correctly
23:07:17.190: warning: deprecated pixel format used, make sure you did set range correctly
23:07:17.345: warning: deprecated pixel format used, make sure you did set range correctly
23:07:17.732: warning: deprecated pixel format used, make sure you did set range correctly
23:07:17.926: warning: deprecated pixel format used, make sure you did set range correctly
23:07:18.141: warning: deprecated pixel format used, make sure you did set range correctly
23:07:19.059: Switched to scene 'Game'
23:07:19.090: ------------------------------------------------
23:07:19.090: Loaded scenes:
23:07:19.090: - scene 'Game':
23:07:19.090: - source: 'Background' (image_source)
23:07:19.090: - source: 'Mic/Aux' (wasapi_input_capture)
23:07:19.090: - source: 'Stream Title' (text_gdiplus)
23:07:19.090: - source: 'Voice Discord' (browser_source)
23:07:19.090: - source: 'BrowserSource' (browser_source)
23:07:19.090: - source: 'Game Capture' (game_capture)
23:07:19.090: - source: 'Video Capture Device' (dshow_input)
23:07:19.090: - source: 'Chat' (browser_source)
23:07:19.090: - source: 'LiveSplit' (window_capture)
23:07:19.090: - source: 'Event List' (browser_source)
23:07:19.090: - source: 'Alerts' (browser_source)
23:07:19.090: - source: 'Webcam' (dshow_input)
23:07:19.090: - monitoring: monitor only
23:07:19.090: - scene 'Self':
23:07:19.090: - source: 'Background' (image_source)
23:07:19.090: - source: 'Chat' (browser_source)
23:07:19.090: - source: 'Alerts' (browser_source)
23:07:19.091: - source: 'Webcam' (dshow_input)
23:07:19.091: - monitoring: monitor only
23:07:19.091: - source: 'ElGato' (dshow_input)
23:07:19.091: - source: 'Video Capture Device' (dshow_input)
23:07:19.091: - source: 'Event List' (browser_source)
23:07:19.091: - scene 'Starting Soon':
23:07:19.091: - source: 'Background' (image_source)
23:07:19.091: - source: 'Image Slide Show' (slideshow)
23:07:19.091: - source: 'Text (GDI+)' (text_gdiplus)
23:07:19.091: - scene 'Recording':
23:07:19.091: - source: 'Video Capture Device' (dshow_input)
23:07:19.091: - scene 'Speedrun':
23:07:19.091: - source: 'Background' (image_source)
23:07:19.091: - source: 'Alerts' (browser_source)
23:07:19.091: - source: 'Chat' (browser_source)
23:07:19.091: - source: 'Event List' (browser_source)
23:07:19.091: - source: 'ElGato' (dshow_input)
23:07:19.091: - source: 'LiveSplit' (window_capture)
23:07:19.091: - source: 'Webcam' (dshow_input)
23:07:19.091: - monitoring: monitor only
23:07:19.091: ------------------------------------------------
23:07:29.639: ElGato: ResolutionValid failed
23:07:29.639: ElGato: Video configuration failed
23:07:31.695: ---------------------------------
23:07:31.695: [DShow Device: 'Webcam'] settings updated:
23:07:31.695: video device: ASUS USB2.0 Webcam
23:07:31.695: video path: \\?\usb#vid_1bcf&pid_2883&mi_00#7&21c6c6cb&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global
23:07:31.695: resolution: 640x480
23:07:31.695: fps: 30.00 (interval: 333333)
23:07:31.695: format: YUY2
23:07:42.887: ---------------------------------
23:07:42.887: [DShow Device: 'Video Capture Device'] settings updated:
23:07:42.887: video device: Elgato Game Capture HD
23:07:42.887: video path: __elgato
23:07:42.887: resolution: 1920x1080
23:07:42.887: fps: 30.00 (interval: 333333)
23:07:42.887: format: UYVY
23:07:42.888: using video device audio: yes
23:07:42.888: sample rate: 48000
23:07:42.888: channels: 2
23:07:42.888: audio type: Capture
23:14:57.245: adding 554 milliseconds of audio buffering, total audio buffering is now 554 milliseconds

 

[sam686]

Which Elgato model do you have? (HD, HD60, HD60-S, HD60 Pro)

Try to change your Elgato video capture to 1280x720 to be the same as your base resolution.

Elgato models without instant game view (USB 2.0 devices: HD, HD60) will use up extra CPU usage to decompress a heavily compressed 720p or 1080p video, due to a very limited USB 2.0 speed. Try to lower Elgato video capture resolution as this may help reduce CPU usage if your Elgato doesn't have instant game view.


Make sure your CPU isn't overheating and throttling (slowing down), use windows 10 task manager's Performance, CPU GHz for speed, and a downloadable program like HWMonitor that can monitor CPU temperature.

 

[updogdrew]

HWMonitor says my THRM is 154 F and Task Manager says my CPU speed is 1.32 GHz and the max speed is 2.4 GHz. How do I get my CPU temp to go down and my CPU faster?

 

[R1CH]

You have a laptop CPU, so it won't run full speed if it doesn't need to. If it runs at half the frequency then 22% load is about the same as 10% load at full frequency.

You can set your Windows power plan to high performance to avoid this, but it will likely reduce battery life and waste energy.

 

[Kounterchrome]

Nah 22.0.1 even with the hotfix flat out uses more cpu, I haven't change a thing...at idle in task manger it's at the top and only increases when streaming or recording.

Whatever you guys added increases cpu load and I purley tested this with just flipping through game/window/display sources and nothing else that could add an additional load like other scenes and video sources.

 

[Kounterchrome]

Heh sorry wrong thread...my bad