Large docker image

[nitdana]

Hi,

First - this tool is awesome and very useful, giving us so much value, just wanted you to know it.
Recently I tried to run it on a very large image of 6 GB, and it took 4 hours to squash it.
Is there anything I can do to for optimizing this process? anyway to run it on multiple cpu maybe?

Thanks!

[goldmann]

Hey, thanks!

You may be interested in reading this: #196 and this: #63.

There are two things that holds us from being even more performant:

1. Docker daemon is single-threaded.
2. We compare files if these exist in layers - we cannot do this in parallel.

None of them are fixable currently.

[nitdana]

Got it, thanks!