XARs: An efficient system for self-contained executables

Re:XARs: An efficient system for self-contained executables by djb_hackernews on Friday July 13, 2018 @03:15PM (#17525830)

Can you expand on that? In my experience nothing about Docker implies a performance impact in terms of size or start time.

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Re:XARs: An efficient system for self-contained executables by collinf on Friday July 13, 2018 @03:27PM (#17525931)

Well, there is the overhead of creating and removing namespaces each time a container is ran, or communicating with the Docker daemon.

I think to most people it would be negligible, but fb operates at a scale where these normally insignificant pieces matter. I would be interested to hear more about the _why_ of a system like this over containerization.

edit: rwmj's comment has a good discussion over the benefits of this over containerization.

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Re:XARs: An efficient system for self-contained executables by nwmcsween on Saturday July 14, 2018 @06:06AM (#17529659)

I promise you 100% the overhead is docker and nothing else.

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