Can someone tell us what is the usual number of guests on a
typical
host in a production environment ? Has someone tested this ? What number
does it scale to ? We have around 150 per host running fine.
It obviously depends on your virtualization backend, host, memory, disk,
NIC etc. So I'm not sure what you're after.
I'm pretty much sure I could easily create something like 10k virtual
machines running DOS or something like that on a box with 16GB memory;
however, I doubt that it would be useful.
On the other hand, this might be a nice test to see how well the libvirt
tools handle things.
Felicitus