Maybe my question is trivial but I'm wondering why spifss should have a bigger space than bare minimum. Is min_spiffs configuration a good choice for all kind of applications?
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Assuming your data fits into the file system (note that it's only around 75% effective), you can allocate as little space for it as you want. The problem is load balancing the writes. The Flash in an Espressif module has a limit of 100000 writes per page. If your application writes a lot of data, this load can be spread over a larger amount of pages by creating a bigger SPIFFS partition. So it really depends on how often and how much data your application is writing over the lifetime of your device. If you create a small partition and write lots of data, the Flash pages allocated for SPIFFS can exceed 100000 writes and are no longer guaranteed to work.
Tarmo
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