Freeswitch(fusionpbx) performancs on WMware ESX vs Proxmox

If youre running Debian KVM's, i would also recommend using the "cloud" linux kernel from backports (or actual buster). Google Cloud is KVM, so all its optimizations should be of benefit.
Not sure what optimizations Google makes but because I'm cowboy (and because snapshots) I installed the cloud package. I'd really like to know what optimizations they made so I could compare metrics against an untuned machine.

For simple folk like me here's the process:

# Add backports to sources.list:

nano /etc/apt/sources/list
#Stretch Backports
deb stretch-backports main contrib main
deb-src stretch-backports main contrib main

# Update the sources

apt update

# Install the cloud package

apt install linux-image-cloud-amd64

FYI this also installs apparmor.

Uname -a :

4.19.0-0.bpo.5-cloud-amd64 #1 SMP Debian 4.19.37-3~bpo9+1 (2019-05-18) x86_64 GNU/Linux

This along with other tunables could probably be made into a scipt but I'm still not sure what the ROI will be yet.