GPU passthrough to virtual machines - Revision history

Burger: /* See Also */

2025-12-15T14:45:02Z

Burger: /* Using CLI tools to determine GPU usage */

2025-09-15T00:10:53Z

Using CLI tools to determine GPU usage

← Older revision		Revision as of 20:10, 14 September 2025
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	== Tips/Techniques ==		== Tips/Techniques ==
	===Using CLI tools to determine GPU usage===		===Using CLI tools to determine GPU usage===
	When troubleshooting ~~this~~, you may want to use ~~for example~~:		When troubleshooting, you may want to use:
	intel-smi		intel-smi
	or		or

Burger: /* Using CLI tools to determine GPU usage */

2025-09-15T00:10:43Z

Using CLI tools to determine GPU usage

← Older revision		Revision as of 20:10, 14 September 2025
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	===Using CLI tools to determine GPU usage===		===Using CLI tools to determine GPU usage===
	When troubleshooting this, you may want to use for example:		When troubleshooting this, you may want to use for example:
	intel-smi		intel-smi
	or		or
	nvidia-smi		nvidia-smi
	Per: https://forums.zoneminder.com/viewtopic.php?p=137930#p137930		Per: https://forums.zoneminder.com/viewtopic.php?p=137930#p137930

Burger: /* Using CLI tools to determine GPU usage */

2025-09-15T00:10:28Z

Using CLI tools to determine GPU usage

← Older revision		Revision as of 20:10, 14 September 2025
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	intel-smi		intel-smi
	or		or
			nvidia-smi
			Per: https://forums.zoneminder.com/viewtopic.php?p=137930#p137930

	==See Also==		==See Also==

Burger: /* Changes between 1.34 and 1.36 */

2025-09-15T00:09:34Z

Changes between 1.34 and 1.36

← Older revision		Revision as of 20:09, 14 September 2025
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	== Changes between 1.34 and 1.36 ==		== Changes between 1.34 and 1.36 ==
	I had to change the buffers settings to stop zmc crashing. ''Maximum Image Buffer Size (frames)'' from 25 to 0. The default is 0 if you create a new monitor in 1.36 which autotunes the buffer. ''Image Buffer Size (frames)'' to 5 which smoothes the live view. /dev/shm is no longer a concern in 1.36 as it was before (see the release notes: https://forums.zoneminder.com/viewtopic.php?f=1&t=30781 )		I had to change the buffers settings to stop zmc crashing. ''Maximum Image Buffer Size (frames)'' from 25 to 0. The default is 0 if you create a new monitor in 1.36 which autotunes the buffer. ''Image Buffer Size (frames)'' to 5 which smoothes the live view. /dev/shm is no longer a concern in 1.36 as it was before (see the release notes: https://forums.zoneminder.com/viewtopic.php?f=1&t=30781 )

			== Tips/Techniques ==
			===Using CLI tools to determine GPU usage===
			When troubleshooting this, you may want to use for example:
			intel-smi
			or

	==See Also==		==See Also==

Gerdesj: Emphasise installation of libnvidia-decode

2025-01-23T16:31:20Z

Emphasise installation of libnvidia-decode

← Older revision		Revision as of 12:31, 23 January 2025
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	# nvidia-smi		# nvidia-smi

	If you just need decoding eg for Zoneminder - this provides ''libnvcuvid.so'': libnvidia-decode-440~~. It should get installed automatically~~.		If you just need decoding eg for Zoneminder - this provides ''libnvcuvid.so'': libnvidia-decode-440.

	If it does not work properly then reboot the ESXi host. For example the two devices seem to pass through OK but only the audio devices seem to work. You may have crashed the GPU in some way. Messing around with drivers and too many restarts of the VM seems to cause this for me.		If it does not work properly then reboot the ESXi host. For example the two devices seem to pass through OK but only the audio devices seem to work. You may have crashed the GPU in some way. Messing around with drivers and too many restarts of the VM seems to cause this for me.
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	In another console, you could run nvidia-smi and see a process using the GPU.		In another console, you could run nvidia-smi and see a process using the GPU.

			If you get an error relating to libnvcuvid.so.1 then you have not installed libnvidia-decode

	== Camera Settings ==		== Camera Settings ==

Gerdesj: First stab at adding Proxmox details

2024-09-06T23:07:18Z

First stab at adding Proxmox details

← Older revision		Revision as of 19:07, 6 September 2024
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	Using a GPU should reduce the load on the CPUs and potentially enable a system to process more or larger camera feeds. It can be tricky to get GPU passthrough for ~~some NVidia cards working on VMWare~~. This article is based on a running ~~system~~. Note that you may also want to consider using a GPU just for object detection (ZMES), not necessarily for ZM.		Using a GPU should reduce the load on the CPUs and potentially enable a system to process more or larger camera feeds. It can be tricky to get GPU passthrough working for GPUs to virtual machines. This article is based on running systems. Note that you may also want to consider using a GPU just for object detection (ZMES), not necessarily for ZM.

			==Nvidia GPU on Proxmox==
			I have recently [[User:Gerdesj\|Gerdesj]] ([[User talk:Gerdesj\|talk]]) 19:07, 6 September 2024 (EDT) migrated the hardware running VMware (Dell T320) in the next section to Proxmox 8.2. I followed this guide: https://www.theregister.com/2024/06/19/proxmox_xcp_ng_gpu_passthrough/ The Proxmox instructions work

	==Nvidia GPU in VMware==		==Nvidia GPU in VMware==
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	Pass the GPU through to the host using the DirectPath I/O mechanism and reboot, then connect both devices to the VM. There will be an audio card and the video card itself. see: https://blogs.vmware.com/apps/2018/09/using-gpus-with-virtual-machines-on-vsphere-part-2-vmdirectpath-i-o.html		Pass the GPU through to the host using the DirectPath I/O mechanism and reboot, then connect both devices to the VM. There will be an audio card and the video card itself. see: https://blogs.vmware.com/apps/2018/09/using-gpus-with-virtual-machines-on-vsphere-part-2-vmdirectpath-i-o.html

	===Ubuntu 20.04 VM===		==Ubuntu 20.04 VM==
	The VM must use EFI so the install must use the Ubuntu server installer and not the minimal installer which will not work with efiboot. VM type set to Ubuntu 64 bit.		The VM must use EFI so the install must use the Ubuntu server installer and not the minimal installer which will not work with efiboot. VM type set to Ubuntu 64 bit.

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	hypervisor.cpuid.v0 = FALSE		hypervisor.cpuid.v0 = FALSE

	====Nvidia drivers and CUDA====		===Nvidia drivers and CUDA===
	These instructions stay within the drivers etc provided by Ubuntu 20.04 LTS. NVidia as upstream also provide drivers and these will be newer but may break something. The OS provided ffmpeg has cuda support built in.		These instructions stay within the drivers etc provided by Ubuntu 20.04 LTS. NVidia as upstream also provide drivers and these will be newer but may break something. The OS provided ffmpeg has cuda support built in.

Gerdesj: Gerdesj moved page GPU passthrough in VMWare to GPU passthrough to virtual machines: Broaden scope of article

2024-09-06T22:58:49Z

Gerdesj moved page GPU passthrough in VMWare to GPU passthrough to virtual machines: Broaden scope of article

← Older revision	Revision as of 18:58, 6 September 2024
(No difference)

Burger: /* See Also */

2024-08-31T14:35:09Z

Burger: /* See Also */

2024-08-31T14:34:28Z

← Older revision		Revision as of 10:45, 15 December 2025
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	* https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ - Nvidia Page on FFMPEG		* https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ - Nvidia Page on FFMPEG
	* https://forums.zoneminder.com/viewtopic.php?t=33415 - the deb-multimedia repo reportedly has CUDA support compiled in for FFMPEG.		* https://forums.zoneminder.com/viewtopic.php?t=33415 - the deb-multimedia repo reportedly has CUDA support compiled in for FFMPEG.
			* https://forums.zoneminder.com/viewtopic.php?p=138627 - Successful report of GPU usage.

← Older revision		Revision as of 10:35, 31 August 2024
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	* https://forums.zoneminder.com/viewtopic.php?f=40&t=30512		* https://forums.zoneminder.com/viewtopic.php?f=40&t=30512
	* https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ - Nvidia Page on FFMPEG		* https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ - Nvidia Page on FFMPEG
	* https://forums.zoneminder.com/viewtopic.php?t=33415 - the deb-multimedia repo reportedly has CUDA support compiled for FFMPEG.		* https://forums.zoneminder.com/viewtopic.php?t=33415 - the deb-multimedia repo reportedly has CUDA support compiled in for FFMPEG.

← Older revision		Revision as of 10:34, 31 August 2024
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	* https://forums.zoneminder.com/viewtopic.php?f=40&t=30512		* https://forums.zoneminder.com/viewtopic.php?f=40&t=30512
	* https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ - Nvidia Page on FFMPEG		* https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/ - Nvidia Page on FFMPEG
			* https://forums.zoneminder.com/viewtopic.php?t=33415 - the deb-multimedia repo reportedly has CUDA support compiled for FFMPEG.