[openstack-dev] Reason for mem/vcpu ratio in default flavors

[David Kranz]

Perhaps this is a historical question, but I was wondering how the 
default OpenStack flavor size ratio of 2/1 was determined? According to 
http://aws.amazon.com/ec2/instance-types/, ec2 defines the flavors for 
General Purpose (M3) at about 3.7/1, with Compute Intensive (C3) at 
about 1.9/1 and Memory Intensive (R3) at about 7.6/1.

 -David
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