[Openstack-operators] Hundreds of instances per host
george.shuklin at gmail.com
Thu Apr 2 12:11:05 UTC 2015
Did someone have experience with many-many instances on a single host?
What kind of issues you find on '200 instances' (300) borderline? Any
specific performance issues, stability? (KVM)
I've just start playing with that idea and I see that 150 instances
consume significant amount of CPU for nothing (300%, with 4% per qemu
process), and libvirtd eats for 30% in the peak, plus about 11% for
nova-compute. But this is in the lab conditions.
Any real-life experience?
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