[Qemu-discuss] libvirt users - performance trade-offs/penalties

[lejeczek]

hi everybody

a newbie here, hoping some experienced users/expert can honestly answer this one question,
and I think I realize all other advantages libvirt offer but simply performance,

does libvirt make a user pay penalty, even if only a small amount, for using it when compared to raw qemu-kvm command line?
if it does where the overhead goes? quest or host, or maybe both?
lastly
if overall performance is slower then how small it is comparing to all the advantages it offers?

many thanks
and apologies if this subject was answered already in the past