take the hello world example. Correct me if I'm wrong, but if one runs it 1000 times in parallel in a single namspace and it will be using close to 1x memory (i.e. like it was running once, assuming the vast majority of memory would be shared), run it 1000 times in parallel in 1000 docker containers and its memory impact will be closer to 1000x (i.e. no shared memory going on).
take the hello world example. Correct me if I'm wrong, but if one runs it 1000 times in parallel in a single namspace and it will be using close to 1x memory (i.e. like it was running once, assuming the vast majority of memory would be shared), run it 1000 times in parallel in 1000 docker containers and its memory impact will be closer to 1000x (i.e. no shared memory going on).