[libvirt] RFC: Increasing number of processes allowed for qemu user

Hi all, When libvirt is running on a system with limited number of processes allowed to be created by the user under which qemu processes are run, we hit scalability issues. My take on this issue is that it's in fact a host configuration issue and it should just be documented that users need to increase the limit if they're going to run large number of domains or on a large number of VCPUs. I don't think libvirt should be involved in changing the limit in any way, especially since it's not possible to change the limit in runtime as doing so can only affect new processes. However, I'd like to be sure this is also the thinking of broader community, esp. Dan :-) Jirka