[frankwiles]

Actually I thought that as well when I first saw it was an option, but these are numbers comparing the official images to these images we built using the standard Python benchmarks. Not compared to say some code we wrote or run in production.

We did 10 runs of each on a large AWS instance and averaged the results.

The build info and benchmark results are up here https://github.com/revsys/optimized-python-docker if we’re wrong about something please let us know.

However, definitely agree that any optimization like this could have negative performance consequences for certain specific bits of code. But that’s likely true of any build to the next.