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Comment by etaioinshrdlu

Spot also supports hibernate on some instance types: https://aws.amazon.com/about-aws/whats-new/2017/11/amazon-ec...

Hibernate is just like good old hibernate from windows XP days. You save the RAM to disk. And resume your processes on next boot and they won't even notice they were stopped! (Except for the time has changed...)

It might be really helpful for low priority batch processing.

Disclaimer: I've never tested this.

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