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These are different things.


Where SBCL just adds some compiled code, writes a memory dump out in a second. Then this can be run as a new SBCL with added code - it still includes the compiler, and all other stuff. One can also then add more code and write another image... The new image is just like the other one, just with more code and otherwise the usual feature set.

This includes the whole SBCL and my code, not just a static application with limited dynamic features.

Many Common Lisp systems have a way to write a snapshot of the developed environment, which then starts in subsecond.

Additionally some Common Lisps have ways to do application or shared library delivery, which can remove dynamic features, remove parts of the development tools, remove unused code/data, etc. This may be similar like doing heap dumps, but with added optimization phases.

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