I’ve recently installed OBS Studio for the first time and I was trying to figure out how much overhead it creates. Luckily, so I thought, OBS Studio actually displays its CPU utilisation on the bottom right of its window. A measly 1.8 % seemed fine to me—that was still more than what I saw in a recent LTT video, but different specs and all … Nonetheless, I decided to launch htop and filter for “obs.” For some reason, htop shows me a different value for OBS’ CPU usage than OBS itself does (see attached screenshot below).
As you can see, OBS Studio shows a CPU usage of 1.7 to 1.8 %, whereas htop shows me values of 22.1 % and 12.3 %. Am I misinterpreting the results in the terminal or is the display within OBS Studio somehow bugged?
A second question I have concerns the method of enabling Nvidia’s Frame Buffer Capture, NVFBC, as a source in OBS Studio that was shown in the video mentioned (and linked) above. They did it in Pop!_OS, but is this method applicable for Manjaro as well? I found an AUR package that supposedly adds NVFBC as a source to OBS Studio, but sadly I couldn’t find anything regarding this topic on the Arch wiki. Does anyone have experience with this and could share perhaps?
Edit:
$ inxi --admin --verbosity=7 --filter --no-host --width
System:
Kernel: 5.10.53-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.10-x86_64
root=UUID=628f24a1-5443-4159-99a5-4a1e4dfaa518 rw quiet apparmor=1
security=apparmor udev.log_priority=3
Desktop: KDE Plasma 5.22.4 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 81HE v: Lenovo Legion Y740-15ICHg
serial: <filter> Chassis: type: 10 v: Lenovo Legion Y740-15ICHg
serial: <filter>
Mobo: LENOVO model: LNVNB161216 v: SDK0R32862 WIN serial: <filter>
UEFI: LENOVO v: AVCN22WW(V1.12) date: 07/20/2020
Battery:
ID-1: BAT1 charge: 53.9 Wh (99.8%) condition: 54.0/57.0 Wh (94.7%)
volts: 12.9 min: 11.5 model: SMP L17M3PG2 type: Li-ion serial: <filter>
status: Unknown cycles: 17
ID-2: hidpp_battery_0 charge: N/A condition: N/A volts: 3.8 min: N/A
model: Logitech G903 Wired/Wireless Gaming Mouse type: N/A serial: <filter>
status: Discharging
Memory:
RAM: total: 15.55 GiB used: 4.15 GiB (26.7%)
RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: 6-Core model: Intel Core i7-8750H bits: 64 type: MT MCP
arch: Kaby Lake note: check family: 6 model-id: 9E (158) stepping: A (10)
microcode: EA cache: L2: 9 MiB bogomips: 52815
Speed: 800 MHz min/max: 800/4100 MHz Core speeds (MHz): 1: 800 2: 800 3: 800
4: 800 5: 800 6: 800 7: 800 8: 800 9: 800 10: 800 11: 800 12: 800
Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat arch_perfmon art
avx avx2 bmi1 bmi2 bts clflush clflushopt cmov constant_tsc cpuid
cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est
f16c flexpriority flush_l1d fma fpu fsgsbase fxsr ht hwp hwp_act_window
hwp_epp hwp_notify ibpb ibrs ida intel_pt invpcid invpcid_single lahf_lm lm
mca mce md_clear mmx monitor movbe mpx msr mtrr nonstop_tsc nopl nx pae pat
pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pln pni popcnt pse pse36 pti pts
rdrand rdseed rdtscp rep_good sdbg sep smap smep ss ssbd sse sse2 sse4_1
sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc tsc_adjust
tsc_deadline_timer vme vmx vnmi vpid x2apic xgetbv1 xsave xsavec xsaveopt
xsaves xtopology xtpr
Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds mitigation: Microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA TU106BM [GeForce RTX 2060 Mobile] vendor: Lenovo
driver: nvidia v: 470.57.02 alternate: nouveau,nvidia_drm bus-ID: 01:00.0
chip-ID: 10de:1f51 class-ID: 0300
Device-2: Chicony Integrated Camera (1280x720@30) type: USB driver: uvcvideo
bus-ID: 1-7:6 chip-ID: 04f2:b604 class-ID: 0e02 serial: <filter>
Display: x11 server: X.Org 1.20.11 compositor: kwin_x11 driver:
loaded: nvidia display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x286mm (20.0x11.3")
s-diag: 583mm (23")
Monitor-1: DP-4 res: 1920x1080 hz: 144 dpi: 142 size: 344x194mm (13.5x7.6")
diag: 395mm (15.5")
OpenGL: renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
v: 4.6.0 NVIDIA 470.57.02 direct render: Yes
Audio:
Device-1: Intel Cannon Lake PCH cAVS vendor: Lenovo driver: snd_hda_intel
v: kernel alternate: snd_soc_skl,snd_sof_pci bus-ID: 00:1f.3
chip-ID: 8086:a348 class-ID: 0403
Device-2: NVIDIA TU106 High Definition Audio vendor: Lenovo
driver: snd_hda_intel v: kernel bus-ID: 01:00.1 chip-ID: 10de:10f9
class-ID: 0403
Device-3: C-Media Q9-1 type: USB driver: hid-generic,snd-usb-audio,usbhid
bus-ID: 1-5:4 chip-ID: 0d8c:0135 class-ID: 0300
Sound Server-1: ALSA v: k5.10.53-1-MANJARO running: yes
Sound Server-2: JACK v: 1.9.19 running: no
Sound Server-3: PulseAudio v: 14.2 running: yes
Sound Server-4: PipeWire v: 0.3.32 running: yes
Network:
Device-1: Intel Cannon Lake PCH CNVi WiFi
vendor: Rivet Networks Killer Wireless-AC 1550i Wireless driver: iwlwifi
v: kernel bus-ID: 00:14.3 chip-ID: 8086:a370 class-ID: 0280
IF: wlp0s20f3 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel port: 3000 bus-ID: 3f:00.0
chip-ID: 10ec:8168 class-ID: 0200
IF: enp63s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
IF-ID-1: wg-mullvad state: unknown speed: N/A duplex: N/A mac: N/A
IP v4: <filter> scope: global
IP v6: <filter> scope: global
WAN IP: <filter>
Bluetooth:
Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) type: USB
driver: btusb v: 0.8 bus-ID: 1-14:7 chip-ID: 8087:0aaa class-ID: e001
Report: rfkill ID: hci0 rfk-id: 3 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: see --recommends
Logical:
Message: No logical block device data found.
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 1.38 TiB used: 837.98 GiB (59.5%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Western Digital
model: PC SN720 SDAPNTW-512G-1101 size: 476.94 GiB block-size:
physical: 512 B logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD
serial: <filter> rev: 10130001 temp: 44.9 C scheme: GPT
ID-2: /dev/sda maj-min: 8:0 vendor: Crucial model: CT1000MX500SSD1
size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 6.0 Gb/s
type: SSD serial: <filter> rev: 033 scheme: GPT
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 204.8 GiB size: 200.59 GiB (97.94%)
used: 163.35 GiB (81.4%) fs: ext4 dev: /dev/sda3 maj-min: 8:3 label: N/A
uuid: 628f24a1-5443-4159-99a5-4a1e4dfaa518
ID-2: /boot/efi raw-size: 260 MiB size: 256 MiB (98.46%)
used: 29 MiB (11.3%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1
label: SYSTEM_DRV uuid: D48E-60B3
ID-3: /mnt/8EC28FE8C28FD2BF raw-size: 475.69 GiB size: 475.69 GiB (100.00%)
used: 189.62 GiB (39.9%) fs: ntfs dev: /dev/nvme0n1p3 maj-min: 259:3
label: Windows-SSD uuid: 8EC28FE8C28FD2BF
ID-4: /mnt/Data raw-size: 576.06 GiB size: 576.06 GiB (100.00%)
used: 454.74 GiB (78.9%) fs: ntfs dev: /dev/sda2 maj-min: 8:2 label: Data
uuid: 01D75132E5F5E0F0
ID-5: /mnt/Data2 raw-size: 150.64 GiB size: 147.21 GiB (97.73%)
used: 30.23 GiB (20.5%) fs: ext4 dev: /dev/sda4 maj-min: 8:4 label: Data 2
uuid: 708fcbc1-116d-49bb-9171-a77b48962022
Swap:
Alert: No swap data was found.
Unmounted:
ID-1: /dev/nvme0n1p2 maj-min: 259:2 size: 16 MiB fs: <superuser required>
label: N/A uuid: N/A
ID-2: /dev/nvme0n1p4 maj-min: 259:4 size: 1000 MiB fs: ntfs label: WINRE_DRV
uuid: D28E90838E9061B1
ID-3: /dev/sda1 maj-min: 8:1 size: 16 MiB fs: <superuser required>
label: N/A uuid: N/A
USB:
Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 16 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 1-1:2 info: Logitech USB Receiver type: Keyboard,Mouse,HID
driver: logitech-djreceiver,usbhid interfaces: 3 rev: 2.0 speed: 12 Mb/s
power: 98mA chip-ID: 046d:c539 class-ID: 0300
Device-2: 1-4:3 info: Integrated Express ITE Device(8910) type: Keyboard
driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 12 Mb/s
power: 100mA chip-ID: 048d:c936 class-ID: 0301
Device-3: 1-5:4 info: C-Media Q9-1 type: Audio,HID
driver: hid-generic,snd-usb-audio,usbhid interfaces: 3 rev: 1.1
speed: 12 Mb/s power: 100mA chip-ID: 0d8c:0135 class-ID: 0300
Device-4: 1-6:5
info: Integrated Express Corsair Gaming K95 RGB PLATINUM Keyboard
type: Keyboard,HID driver: hid-generic,usbhid interfaces: 2 rev: 2.0
speed: 12 Mb/s power: 100mA chip-ID: 048d:c935 class-ID: 0300
Device-5: 1-7:6 info: Chicony Integrated Camera (1280x720@30) type: Video
driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA
chip-ID: 04f2:b604 class-ID: 0e02 serial: <filter>
Device-6: 1-14:7 info: Intel Bluetooth 9460/9560 Jefferson Peak (JfP)
type: Bluetooth driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s
power: 100mA chip-ID: 8087:0aaa class-ID: e001
Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 8 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-3: 3-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Hub-4: 4-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-5: 5-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Hub-6: 6-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
System Temperatures: cpu: 60.0 C mobo: N/A gpu: nvidia temp: 54 C
Fan Speeds (RPM): N/A
Info:
Processes: 298 Uptime: 18m wakeups: 3 Init: systemd v: 248 tool: systemctl
Compilers: gcc: 11.1.0 Packages: 1503 pacman: 1499 lib: 437 flatpak: 0
snap: 4 Shell: Bash v: 5.1.8 running-in: konsole inxi: 3.3.06
