same question here. i remark than after many (100+) delete/write files on spiffs, system become very slow and sometime corrupt files. nowhere i found info about garbage collection (how it work), consistency check, or other. only solution to recover good spiffs work/speed is to format spiffs partitio...

Hello, in my actual project, i use spiffs 2MB partition (on 16MB esp32) to create a text log file each boot, incrementing name. (find first free name). when wifi is available, system upload/chack validity then DEL spiffs file. for each present log file. it work fine, BUT... After 100 or more create/...

Hello,
I got exactly same problem as you (with same (not so good) solution : return to 2Mb SPIFFS in place od 8mb)
Did you finally find a real solution ? tune sspiffs settings ?
any advice ?

Thanks a lots !