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vCPU (virtual Central Processing Unit)

A vCPU, or virtual Central Processing Unit, represents a share or portion of a physical CPU that is allocated to a VM. It is managed by a hypervisor, which schedules the vCPU's time on the physical CPU. The concept of vCPUs allows for the virtualization of CPU resources, enabling multiple VMs to run on a single physical CPU. This is particularly useful in cloud computing environments where it can improve resource utilization and flexibility. The number of vCPUs that can be assigned to a VM can vary and is influenced by factors such as the hypervisor's capabilities and the physical CPU's architecture[2][4][6].

Citations:

[1] https://www.nvidia.com/en-us/data-center/virtual-solutions/

[2] https://www.datacenters.com/news/what-is-a-vcpu-and-how-do-you-calculate-vcpu-to-cpu

[3] https://blogs.nvidia.com/blog/what-is-a-virtual-gpu/

[4] https://www.techtarget.com/whatis/definition/virtual-CPU-vCPU

[5] https://en.wikipedia.org/wiki/GPU_virtualization

[6] https://phoenixnap.com/kb/what-is-a-vcpu

[7] https://krutavshah.github.io/GPU_Virtualization-Wiki/

[8] https://openmetal.io/docs/glossary/what-is-vcpu/

[9] https://documentation.suse.com/sles/15-SP3/html/SLES-all/article-nvidia-vgpu.html

[10] https://www.accuwebhosting.com/blog/what-is-virtual-processor-or-vcpu/

[11] https://youtube.com/watch?v=NiXtswuE1MI