[CentOS] Transition test report going from CentOS8 to Debian 10.

Fri Aug 6 13:13:45 UTC 2021
Lamar Owen <lowen at pari.edu>

On 8/4/21 1:10 PM, Christopher Wensink wrote:
> Were these deployed on bare metal or as virtual machines?  If Virtual 
> were they on vmware?

I have a mix of bare metal and virtual, but I am slowly migrating almost 
all of the bare-metal servers to virtualization.  All of my production 
virtualization hosts here are now on Proxmox and are running the 
CentOS/Debian version mix guests in KVM.  Still learning the tuning of 

> Can anyone speak to how well a virtual machine will perform when being 
> given 1 socket 1 core, vs. 1 socket 2 cores vs 2 sockets 1 core? 

I have not found any noticeable difference in whether a CPU is in a 
separate socket or just another core in one socket when using KVM 
virtualization.  But I've also not done a deep-dive into benchmarking 
it, either, so I reserve the right to be wrong.  This is with a mix of 
CentOS versions on a Proxmox host;  all CentOS versions I've tried there 
have run well (and I have tried ALL major CentOS versions on Proxmox, 
including CentOS 2.1 through 5.....)