What is the minimum recommended heap size for edgemicro?

[#1]

Is there a recommended minimum heap size for edgemicro? The default maximum heap size for V8 is 1.5Gb which is much more than we're willing to have Edge Microgateway consume on a VM (not very micro at that size).

I've done some preliminary testing with the --max_old_space_size V8 option at 256MB with what seems to be reasonable results (except for large API responses).

I've also tried it at 128MB and ran into some problems, but none of them were obvious memory related issues. Haven't had time to investigate further.

Is there a minimum size that Apigee recommends?

Thanks!