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On 02/15/2017 12:46 PM, Daniel Alvarez Sanchez wrote:
> Hi there,
>
> We're trying to figure out why, sometimes, rpc_loop takes over 10
> seconds to process an iteration when booting instances. So we deployed
> devstack on a 8GB, 4vCPU VM and did some profiling on the following command:
>
> nova boot --flavor m1.nano --image cirros-0.3.4-x86_64-uec --nic
> net-name=private --min-count 8 instance

Hi Daniel, thanks for posting the information here. Quick request of 
you, though... can you try re-running the test but doing 8 separate 
calls to nova boot instead of using the --min-count 8 parameter? I'm 
curious to see if you notice any difference in contention/performance.

Best,
-jay