Preferred way to store many small files?

[yanshay]

If I want to store many small files, a few hundreds to a few thousands, is it better to store them all in a single directory or split to several directories?

[thejpster]

Reading from a directory in FAT is a linear walk so you should always limit how many files you put in one directory. The best value depends on your use case - you can do some benchmarks to find the sweet spot.

But please also note that this crate does not come with a warranty and should not be used to store anything you care about!

[yanshay]

Don't worry, no bitcoins using this crate 😀

I guess (only guess) the time involves both reading a block and then going through entries in block? How many entries fit a single block?

[thejpster]

A FAT dir entry is 32 bytes. A sector is 512 bytes.