Tool that recursively calculate the size of a pattern
Similare to what du -sh do on Unix systems.
That could help to know which key pattern is taking up most of your memory.
AdminBruce (Founder, Redsmin) commented
Some tools already do a great job, did you try https://github.com/Redsmin/redis-tool#zlist-size or even https://github.com/sripathikrishnan/redis-rdb-tools ?
Tools like rdb-tools are better at this thing because they don't have to send requests to Redis to scan the database.
I will keep this feature request in a corner just in case someone else would want something similar.