What is a Google AppEngine Instance?

What exactly is a Google App Engine Instance as per their plans to change the billing model as they exit preview?

Is an instance a VM w开发者_StackOverflowith a set of memory and a fixed amount of dedicated CPU power, memory etc or something else?

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Is an instance a VM with a set of memory and a fixed amount of dedicated CPU power, memory etc or something else?

Yes, exactly that it is. A VM with a set of memory and a fixed amount of dedicated CPU power. I can't remember how many instances a google server has but they said that in a I/O session. They also said what kind of servers google is using for App Engine ( quad core with some big amount of ram). Here it's the recording if I'm not wrong https://www.youtube.com/watch?v=7B7FyU9wW8Y

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http://code.google.com/appengine/docs/adminconsole/instances.html#Introduction_to_Instances for a general description.

http://code.google.com/appengine/docs/python/config/backends.html for specifics on backends, where you have more control over the resource that you're either reserving or using on demand.