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Young's Modulus is defined as follows:

Young's modulus or Young modulus is a mechanical property that measures the stiffness of a solid material

In the case of AWS Elastic Compute Cloud (EC2), the analogy of this physical property is provided via the AutoScaling feature -- as one stresses the system, it can accomodate more force. Considering just the case where one applies autoscaling based on cloudwatch alarms:

What is the maximum elasticity that EC2 autoscaling can provide?

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  • I'd say the max is your EC2 instance limit, but this sounds more a question for AWS support than for this site to get an official answer.
    – Tensibai
    Sep 4 '19 at 12:27
  • I'm not interested in the limit, but the elasticity. How fast can EC2 respond to stress. And yes, I could go ask support, but as an experimentalist, I prefer to see if anyone has measured it :) I suspect it depends heavily on the customer, and can be almost infinite, but the docs don't say much about it. Sep 4 '19 at 12:34
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    Because there's not much to measure 'as is', how fast is how fast your app start , which is highly dependent on the application itself, I've apps starting in less than 45 seconds and some taking 4 minutes to load their caches, I don't set the threshold to scale-up/down the same on both but adapt the threshold to each case.
    – Tensibai
    Sep 4 '19 at 12:41
  • Could you reply to the comment?
    – 030
    Dec 25 '19 at 12:29