300 bytes of memory per file, isnt this too much for redis use? anyone tried using it on pika before?

[sprappcom]

The space used by the JuiceFS metadata engine is mainly related to the number of files in the file system. According to our experience, the metadata of each file occupies approximately 300 bytes of memory. Therefore, if you want to store 100 million files, approximately 30 GiB of memory is required.

300 bytes of memory per file, isnt this too much for redis use? anyone tried using it on pika before?
https://github.com/OpenAtomFoundation/pika

what's the maximum file limit for juicefs? and how much data can be stored? 1000 billion files, 100 exabytes?